[bug #25385] crash in [GSToolTips mouseEntered:] called from [NSWindow _checkTrackingRectangles:forEvent:]

[Doug Simons]

Follow-up Comment #5, bug #25385 (project gnustep):

Okay, ignore most of what I said yesterday. I've been able to reliably
produce this crash in my app now, and it seems likely that it has more to do
with tooltips than with tracking rectangles.

The crash occurs in this way: I call [self setTooltip:] in a private subclass
of NSImageView (in an overridden setImage: method). It works fine the first
time, but when my setImage: method is called again to switch images and I call
setTooltip: a second time (with information about the new image's size) then I
get this crash upon moving the mouse over the image.

I hope that helps to track down the problem.

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