Fill and Stroke's Wheel panel alpha slider can cause a crash when interacting with the CMS panel

... (write here)

Pre-req (can be skipped if you already know your alpha is set to 100):

The crash repo can still happen if you don't do this, but it takes more fiddling.

Actual steps:

Download some color profiles if you don't already have them: Adobe ICC Profiles
If you didn't already have color profiles, copy the Coated GRACoL 2006 profile into the following folder:
- Windows: C:\Windows\System32\spool\drivers\color
- Linux: /home/USER_NAME_HERE/.color/icc (unless Inkscape expects it somewhere else)
Open Inkscape
Open Document Properties (Ctrl + Shift + D)
Flip to the Color tab and add the GRACoL 2006 color profile
Close the Document Properties panel
Draw a rectangle
Open the fill and stroke panel with it selected (Ctrl + Shift + F)
Flip to the CMS panel and apply the GRACol 2006 profile
- If all sliders appear, skip to step 12
- If only the A (alpha) slider appears, continue to step 10
Flip to the Wheel panel and move the chosen color circle
Flip back to the CMS panel and apply the GRACol 2006 profile
- All sliders will definitely now all be visible
Drag the A slider to something like 60 (probably anything but 100)
Flip to the Wheel panel
Click in the triangle to move the chosen color circle and drag the A slider to 100
Flip back to the CMS panel and click the plus button next to a non-alpha slider

Inkscape crashes!

Inkscape should not have crashed. :) Inkscape should just update the CMS panel sliders as expected for the now current values.

Sample attachments:

- Inkscape Version: Inkscape 1.1 (c68e22c387, 2021-05-23)
- Operating System: Windows 10
- Operating System version: 2004; build 19041.985

Edited May 28, 2021 by Alastair McBain