currentColor in stop-color crash

Steps to reproduce:

• If stop-color (gradient) is currentColor, Inkscape 1.x always crashes.
• The problem does not exist with Inkscape 0.92.
• The bug occurs when opening the file or when the stop-color is set in the xml editor.

What happened?

• Inkscape crashes and close immediately.

What should have happened?

...

Inkscape Version and Operating System:

• Inkscape Version: 1.x... tested on multiple 1.x versions under kubuntu, manjaro... from ppa, snap, flatpack...
• Operating System: Manjaro, Kubuntu 18.04, 20.04