Text inputs can cause crashes on enablement and layout switching

[pavel-krivanek]

On layout changes, text inputs that change enablement are sometimes generationg this Gtk critical error:

Gtk-CRITICAL **: gtk_widget_set_sensitive: assertion 'GTK_IS_WIDGET (widget)' failed

It sometimes causes random VM crashes

To reproduce, load this code:

SpTextInputLeakPresenter.zip

and run SpTextInputLeakPresenter run.

See the console, after some time, errors are printed.

Interesting points:

• just layout switching does not produce this issue
• just enablement switching does not produce this issue

[pavel-krivanek]

it happens quite randomly. I got the errors usually on about 170th repeat. Then few times not at all...

[pavel-krivanek]

It happens even if I do a 100 ms delay before and after the enablement change so it does not look like a problem of changing something currently being rebuilt.