When the -blockcursor option is set to 1, the cursor appears as a blinking bar which expands to the right edge of the widget.
The problem is there for Tk 8.5.4 on X11 (tested by me) and HEAD (confirmed by dkf on the tcler's chat).
Seems to be an interaction with the newline.
I have proposed a patch:
https://sourceforge.net/tracker/index.php?func=detail&aid=3479498&group_id=12997&atid=312997
The proposed patch is available for review in branch patch-3479498
Merged in core-8-5-branch and trunk. Closing now.
Seems to be an interaction with the newline.
I have proposed a patch:
https://sourceforge.net/tracker/index.php?func=detail&aid=3479498&group_id=12997&atid=312997
The proposed patch is available for review in branch patch-3479498
Merged in core-8-5-branch and trunk. Closing now.