GPX won't export timestamp and other metadata (speed, satellite etc.)

[turicas]

Describe the bug
I have imported a GPX file generated by exiftool (extracted from a GoPro MP4 video), which has lat/lon and also timestamp information (among other metadata, such as speed, satellite etc.). After uploading this file to uMap and even if I don't make any changes, the exported file (GPX) won't have any timestamp or other metadata.

To Reproduce
Steps to reproduce the behavior:

• Open https://umap.openstreetmap.de/en/map/#14/42.3708/-71.0764
• On the right side, click on "Edit" button
• Click on "Import data" option (Ctrl + i)
• Select test.gpx file (content below), fill "test" as the layer name and click to import
• There will be an alert "Cannot parse data", but the points will be shown on the map (see below)
• On the left side menu, click on "Share and download" and then click in "gpx" option
• The exported GPX won't have date/time, geoidheight and gps satellite data (see below)

I've tried importing a KML file and downloading as GPX and the date/time information is also not preserved (see a sample file below).

Expected behavior
Export GPX with the same metadata as uploaded, so user won't lose data.

Screenshots

Desktop (please complete the following information):

• OS: Debian GNU/Linux
• Browser Google Chrome
• Version 128.0.6613.84 (Official Build) (64-bit)

Additional context
test.gpx (original final) contents:

<?xml version="1.0" encoding="utf-8"?>
<gpx xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.topografix.com/GPX/1/0" version="1.0" creator="ExifTool 12.76" xsi:schemaLocation="http://www.topografix.com/GPX/1/0 http://www.topografix.com/GPX/1/0/gpx.xsd">
  <trk>
    <number>1</number>
    <trkseg>
      <trkpt lat="42.3659852" lon="-71.1049466">
        <ele>-21.399999618530273</ele>
        <time>2024-09-01T23:19:17.334Z</time>
        <extensions>
          <gpxtpx:TrackPointExtension/>
        </extensions>
        <src>network</src>
      </trkpt>
      <trkpt lat="42.365875" lon="-71.10485333333332">
        <ele>-21.6</ele>
        <time>2024-09-01T23:19:28.000Z</time>
        <extensions>
          <gpxtpx:TrackPointExtension>
            <gpxtpx:bearing>135.84</gpxtpx:bearing>
            <gpxtpx:speed>1.3099681</gpxtpx:speed>
          </gpxtpx:TrackPointExtension>
        </extensions>
        <geoidheight>-33.7</geoidheight>
        <src>gps</src>
        <sat>10</sat>
        <hdop>0.69</hdop>
        <vdop>0.61</vdop>
        <pdop>0.92</pdop>
      </trkpt>
      <trkpt lat="42.36583333333333" lon="-71.10469166666667">
        <ele>-21.1</ele>
        <time>2024-09-01T23:19:39.000Z</time>
        <extensions>
          <gpxtpx:TrackPointExtension>
            <gpxtpx:bearing>119.05</gpxtpx:bearing>
            <gpxtpx:speed>0.0</gpxtpx:speed>
          </gpxtpx:TrackPointExtension>
        </extensions>
        <geoidheight>-33.7</geoidheight>
        <src>gps</src>
        <sat>11</sat>
        <hdop>0.76</hdop>
        <vdop>0.65</vdop>
        <pdop>1.00</pdop>
      </trkpt>
      <trkpt lat="42.36576" lon="-71.10452666666667">
        <ele>-25.6</ele>
        <time>2024-09-01T23:19:50.000Z</time>
        <extensions>
          <gpxtpx:TrackPointExtension>
            <gpxtpx:bearing>121.34</gpxtpx:bearing>
            <gpxtpx:speed>0.0</gpxtpx:speed>
          </gpxtpx:TrackPointExtension>
        </extensions>
        <geoidheight>-33.7</geoidheight>
        <src>gps</src>
        <sat>9</sat>
        <hdop>0.81</hdop>
        <vdop>0.71</vdop>
        <pdop>1.08</pdop>
      </trkpt>
      <trkpt lat="42.365723333333335" lon="-71.10438500000001">
        <ele>-28.6</ele>
        <time>2024-09-01T23:20:01.000Z</time>
        <extensions>
          <gpxtpx:TrackPointExtension>
            <gpxtpx:bearing>123.46</gpxtpx:bearing>
            <gpxtpx:speed>1.1653311</gpxtpx:speed>
          </gpxtpx:TrackPointExtension>
        </extensions>
        <geoidheight>-33.7</geoidheight>
        <src>gps</src>
        <sat>10</sat>
        <hdop>0.74</hdop>
        <vdop>0.67</vdop>
        <pdop>1.00</pdop>
      </trkpt>
    </trkseg>
  </trk>
</gpx>

Downloaded GPX file:

<?xml version="1.0" encoding="UTF-8"?>
<gpx xmlns="http://www.topografix.com/GPX/1/1" version="1.1" creator="@dwayneparton/geojson-to-gpx">
  <trk>
    <trkseg>
      <trkpt lat="42.365985" lon="-71.104947">
        <ele>-21.4</ele>
      </trkpt>
      <trkpt lat="42.365875" lon="-71.104853">
        <ele>-21.6</ele>
      </trkpt>
      <trkpt lat="42.365833" lon="-71.104692">
        <ele>-21.1</ele>
      </trkpt>
      <trkpt lat="42.36576" lon="-71.104527">
        <ele>-25.6</ele>
      </trkpt>
      <trkpt lat="42.365723" lon="-71.104385">
        <ele>-28.6</ele>
      </trkpt>
    </trkseg>
  </trk>
</gpx>

test.kml:

<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2" xmlns:gx="http://www.google.com/kml/ext/2.2" xmlns:kml="http://www.opengis.net/kml/2.2" xmlns:atom="http://www.w3.org/2005/Atom">
  <Document>
    <name>2024-09-01T05:17:21.547Z</name>
    <Placemark>
      <gx:Track>
        <when>2024-09-01T23:20:01.000Z</when>
        <gx:coord>-71.10438500000001 42.365723333333335 -28.6</gx:coord>
        <when>2024-09-01T23:20:12.000Z</when>
        <gx:coord>-71.10428833333334 42.36558166666667 -26.000000000000004</gx:coord>
        <when>2024-09-01T23:20:23.000Z</when>
        <gx:coord>-71.10425166666667 42.36548 -21.1</gx:coord>
        <when>2024-09-01T23:20:33.000Z</when>
        <gx:coord>-71.10439333333333 42.36545833333333 -20.400000000000002</gx:coord>
        <when>2024-09-01T23:20:43.727Z</when>
        <gx:coord>-71.1043177 42.3653138 -21.799999237060547</gx:coord>
      </gx:Track>
    </Placemark>
  </Document>
</kml>