GNU bug report logs - #35246
26.2; Mouse wheel scrolling in GTK build sometimes scrolls the entire buffer

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From: Alex Gramiak <agrambot <at> gmail.com>
To: 35246 <at> debbugs.gnu.org
Subject: bug#35246: 26.2; Mouse wheel scrolling in GTK build sometimes scrolls the entire buffer
Date: Fri, 12 Apr 2019 11:23:27 -0600

Occasionally, after first moving the mouse over the frame after it was
iconified or unused for "a while", scrolling down in a buffer scrolls
the entire buffer regardless of buffer length. During this scrolling,
the GUI cursor changes to a busy (hourglass) cursor.

I unfortunately can not reproduce this issue reliably, which is why I
held off on reporting this until now. I can cancel the scrolling when
the cursor is an hourglass cursor, at which point the buffer is
partially scrolled. I recall that debug-on-quit did not help here.

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