| Description: |
Create an option file containing:
*example: \tab
(where the tab is the literal tab character)
Then read that into Tk and examine the result.
According to the spec: https://www.x.org/archive/X11R6.8.1/doc/X.7.html
That should result in just a tab character, but instead, it is currently resulting in \tab (the \ remains).
This behavior was fixed in 8.5 and in 8.6 as a part of: https://core.tcl-lang.org/tk/tktview?name=0aa5e852dc
But, then broken in a fix detailed here: https://core.tcl.tk/tk/info/766ef52f317f3a4a
The original test for this functionality was (incorrectly) updated to have the literal \ remain in front of the tab character. Test : option-15.7
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