When xsane is run with XLIB_SKIP_ARGB_VISUALS=1 there is no crash.
Workaround in the terminal: XLIB_SKIP_ARGB_VISUALS=1 xsane
Workaround editing the menu: env XLIB_SKIP_ARGB_VISUALS=1 xsane
When xsane is run with XLIB_SKIP_ ARGB_VISUALS= 1 there is no crash.
Workaround in the terminal: ARGB_VISUALS= 1 xsane
XLIB_SKIP_
Workaround editing the menu: ARGB_VISUALS= 1 xsane
env XLIB_SKIP_