inkscape crash when cursor can not be loaded

Steps to reproduce:

Configure sway to use a xcursor-theme that doesn't have the "sb_up_arrow" cursor, like xcursor-comix
Open Inkscape
Create a rectangle object in Inkscape and select it
Click 'Object -> Fill and Stroke' in the menu bar
Move the mouse over the 'Blur' or 'Opacity' slider control

What happened?

Gdk-Message: 12:39:25.583: Unable to load sb_up_arrow from the cursor theme

Inkscape crashed when the mouse was moved over a slider control and the xcursor-theme doesn't have the 'sb_up_arrow' cursor. When a different xcursor-theme like 'Adwaita' is used that has the 'sb_up_arrow' cursor, Inkscape does not crash.

Inkscape Version and Operating System:

Inkscape Version: inkscape-git package from AUR - Inkscape 1.1-dev (b70353cad4, 2020-02-11), Pango version: 1.44.7, sway 1.4-7
Operating System: Arch Linux

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