From 358308dd99abdd56c6540339e505585d8db7bdfe Mon Sep 17 00:00:00 2001
From: Bram Moolenaar <Bram@vim.org>
Date: Wed, 24 Aug 2016 21:21:26 +0200
Subject: patch 7.4.2248 Problem:    When cancelling the :ptjump prompt a
 preview window is opened for             a following command. Solution:  
 Reset g_do_tagpreview. (Hirohito Higashi)  Add a test.  Avoid that           
  the test runner gets stuck in trying to close a window.

---
 src/tag.c                    |  3 +++
 src/testdir/runtest.vim      | 11 ++++++++++-
 src/testdir/test_tagjump.vim | 16 ++++++++++++++++
 src/version.c                |  2 ++
 4 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/src/tag.c b/src/tag.c
index 8fe213d6d5..f772c833d6 100644
--- a/src/tag.c
+++ b/src/tag.c
@@ -1078,6 +1078,9 @@ end_do_tag:
 	curwin->w_tagstackidx = tagstackidx;
 #ifdef FEAT_WINDOWS
     postponed_split = 0;	/* don't split next time */
+# ifdef FEAT_QUICKFIX
+    g_do_tagpreview = 0;	/* don't do tag preview next time */
+# endif
 #endif
 
 #ifdef FEAT_CSCOPE
diff --git a/src/testdir/runtest.vim b/src/testdir/runtest.vim
index 8f0c0c3c80..2660d93e8a 100644
--- a/src/testdir/runtest.vim
+++ b/src/testdir/runtest.vim
@@ -105,8 +105,17 @@ function RunTheTest(test)
   endif
 
   " Close any extra windows and make the current one not modified.
-  while winnr('$') > 1
+  while 1
+    let wincount = winnr('$')
+    if wincount == 1
+      break
+    endif
     bwipe!
+    if wincount == winnr('$')
+      " Did not manage to close a window.
+      only!
+      break
+    endif
   endwhile
   set nomodified
 endfunc
diff --git a/src/testdir/test_tagjump.vim b/src/testdir/test_tagjump.vim
index b22bde8047..678ad0ada8 100644
--- a/src/testdir/test_tagjump.vim
+++ b/src/testdir/test_tagjump.vim
@@ -7,4 +7,20 @@ func Test_ptag_with_notagstack()
   set tagstack&vim
 endfunc
 
+func Test_cancel_ptjump()
+  set tags=Xtags
+  call writefile(["!_TAG_FILE_ENCODING\tutf-8\t//",
+        \ "word\tfile1\tcmd1",
+        \ "word\tfile2\tcmd2"],
+        \ 'Xtags')
+
+  only!
+  call feedkeys(":ptjump word\<CR>\<CR>", "xt")
+  help
+  call assert_equal(2, winnr('$'))
+
+  call delete('Xtags')
+  quit
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab
diff --git a/src/version.c b/src/version.c
index 0a96e68d5b..8b9818efa2 100644
--- a/src/version.c
+++ b/src/version.c
@@ -763,6 +763,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2248,
 /**/
     2247,
 /**/
-- 
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