patch 8.1.1259: crash when exiting earlyv8.1.1259

Problem:    Crash when exiting early. (Ralf Schandl)
Solution:   Only pop/push the title when it was set. (closes #4334)

1 files changed, 2 insertions, 1 deletions

diff --git a/src/tag.c b/src/tag.c
index 1242668a8..2d46e1400 100644
--- a/src/tag.c
+++ b/src/tag.c
@@ -2860,7 +2860,8 @@ found_tagfile_cb(char_u *fname, void *cookie UNUSED)
 free_tag_stuff(void)
 {
     ga_clear_strings(&tag_fnames);
-    do_tag(NULL, DT_FREE, 0, 0, 0);
+    if (curwin != NULL)
+	do_tag(NULL, DT_FREE, 0, 0, 0);
     tag_freematch();
 
 # if defined(FEAT_QUICKFIX)