browser 'de-float' icon produces crash

[twillis449]

I'm testing the browser visualization under Ubuntu 16.04. So I have a plot and then 'float' it. That works OK. But when I want to 'de-float' the plot and return i to the main browser, if I click the 'X' next to the float icon I get the crash message given below and the plot is gone forever. On the other hand when I click the system supplied close window icon (the X in the outer window boundary) the window does return to its original place in the browser.

1.0Gb gui(meqserver_gui.py:600:_start_kernel): started meqserver process 4577
======== curry: exception while calling a curried function
function: <bound method ResultPlotter.close of <Timba.Plugins.result_plotter.ResultPlotter object at 0x7f1ca4f999d0>>
args: ()
kwargs: {}
AttributeError: Attribute not found.
'Floater' object has no attribute 'reparent'
======== exception traceback follows:
File "/home/twillisb/meq_land/meqtrees-timba/install/symlinked-release/libexec/python/Timba/utils.py", line 195, in callit
return func(_a,__kw);
File "/home/twillisb/meq_land/meqtrees-timba/install/symlinked-release/libexec/python/Timba/Grid/CellBlock.py", line 215, in close
float_window.reparent(QWidget(),QPoint(0,0));
Traceback (most recent call last):
File "/home/twillisb/meq_land/meqtrees-timba/install/symlinked-release/libexec/python/Timba/utils.py", line 195, in callit
return func(_a,**kw);
File "/home/twillisb/meq_land/meqtrees-timba/install/symlinked-release/libexec/python/Timba/Grid/CellBlock.py", line 215, in close
float_window.reparent(QWidget(),QPoint(0,0));
AttributeError: 'Floater' object has no attribute 'reparent'