Created attachment 7244
On one of my virtual desktops, I have 4 identically-sized Xterm windows. When I cycle through the windows with Alt-Tab, the first window gets outlined, but when I press Tab again, the next window does not get outlined. If I open a window that is a different size, then it gets outlined as I cycle through.
I looked through the source code and found the following suspicious block of code in src/wireframe.c:
if ((width == wireframe->width) && (height == wireframe->height))
/* Moving only */
I removed this block, and that fixed the bug for me.
Created attachment 7245
Video showing behavior pre-patch
Created attachment 7246
Video showing correct behavior after patch
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