patch 9.1.2116: crash when using 'tagfunc'

Commit: 
https://github.com/vim/vim/commit/57b577df3217b4f28abff6fe3c0a480192927ae2
Author: Yasuhiro Matsumoto <[email protected]>
Date:   Fri Jan 30 09:45:55 2026 +0000

    patch 9.1.2116: crash when using 'tagfunc'
    
    Problem:  crash when using 'tagfunc' (Rodrigo Queipo)
    Solution: Do not add the user_data to the 'info' dictionary when called
              for insert mode completion (the TAG_INS_COMP flag is set).
              Completion should not depend on the state of a previous tag
              jump. (Yasuhiro Matsumoto)
    
    fixes:  #19255
    closes: #19284
    
    Signed-off-by: Yasuhiro Matsumoto <[email protected]>
    Signed-off-by: Christian Brabandt <[email protected]>

diff --git a/src/tag.c b/src/tag.c
index b2ecb5656..07890943f 100644
--- a/src/tag.c
+++ b/src/tag.c
@@ -1460,7 +1460,7 @@ find_tagfunc_tags(
     // create 'info' dict argument
     if ((d = dict_alloc_lock(VAR_FIXED)) == NULL)
        return FAIL;
-    if (tag->user_data != NULL)
+    if (!(flags & TAG_INS_COMP) && tag->user_data != NULL)
        dict_add_string(d, "user_data", tag->user_data);
     if (buf_ffname != NULL)
        dict_add_string(d, "buf_ffname", buf_ffname);
diff --git a/src/version.c b/src/version.c
index 2644380c0..30f37349d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -734,6 +734,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2116,
 /**/
     2115,
 /**/

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