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patch 9.1.1564: crash when opening popup to closing buffer

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Problem:  Can open a popup window to a closing buffer, leading to the
          buffer remaining open in the window after it's soon unloaded,
          causing crashes.
Solution: Check b_locked_split when opening a popup window to an
          existing buffer (Sean Dewar).

closes: #17790

Signed-off-by: Sean Dewar <6256228+seandewar@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Sean Dewar
2025-07-18 20:09:47 +02:00
committed by Christian Brabandt
parent be863b2633
commit 2e58b7684f
5 changed files with 3095 additions and 1 deletions
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4
src/errors.h
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@ -3742,3 +3742,7 @@ EXTERN char e_cannot_have_more_than_nr_diff_anchors[]
EXTERN char e_failed_to_find_all_diff_anchors[]
INIT(= N_("E1550: Failed to find all diff anchors"));
#endif
#ifdef FEAT_PROP_POPUP
EXTERN char e_cannot_open_a_popup_window_to_a_closing_buffer[]
INIT(= N_("E1551: Cannot open a popup window to a closing buffer"));
#endif