Wacom-tablet click the "transform" button, and GIMP crashes.

[SenlinOS]

GIMP-git (2.9.5)

1 Edit > Input Devices
wacom-Pen stylus, Mode: Screen

2 Edit > Preferences
Image Windows - Appearance
Uncheck: Show rulers

3 Restart GIMP

4 Use Unified Transform Tool
Wacom-tablet click the "transform" button, and GIMP crashes.
The terminal display is "Segmentation fault".
(I can't find more information!)

All transform tools, using the Enter key, can work properly.
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Hope everyone in the forum can find more information.
Report to: http://bugzilla.gnome.org/show_bug.cgi?id=784480