Commit: patch 9.2.0380: completion: a few issues in completion code

[Christian Brabandt]

patch 9.2.0380: completion: a few issues in completion code

Commit: https://github.com/vim/vim/commit/b328686d6a1eae1c519a0cdc0420c0d87b6d1fd1
Author: glepnir <gleph...@gmail.com>
Date: Mon Apr 20 17:36:56 2026 +0000

patch 9.2.0380: completion: a few issues in completion code

Problem: ins_compl_stop() sets compl_best_matches = 0, but that's a
pointer, should reset compl_num_bests instead,
find_common_prefix() reads cpt_sources_array[cur_source] without
checking cur_source != -1 which causes an OOB for -1,
find_next_completion_match(): second `if` in the pending loop
should be `else if`. Forward paging only moves one step per call.

Solution: Reset compl_num_bests instead, add a check for cur_source not
equal -1, change if to else if (glepnir)

closes: #20000

Signed-off-by: glepnir <gleph...@gmail.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/src/insexpand.c b/src/insexpand.c
index 019557cab..0019c7eb4 100644
--- a/src/insexpand.c
+++ b/src/insexpand.c
@@ -3034,7 +3034,7 @@ ins_compl_stop(int c, int prev_mode, int retval)
}
compl_autocomplete = FALSE;
compl_from_nonkeyword = FALSE;
- compl_best_matches = 0;
+ compl_num_bests = 0;
compl_ins_end_col = 0;

if (c == Ctrl_C && cmdwin_type != 0)
@@ -5795,7 +5795,8 @@ find_common_prefix(size_t *prefix_len, int curbuf_only)
}

if (!match_limit_exceeded && (!curbuf_only
- || cpt_sources_array[cur_source].cs_flag == '.'))
+ || (cur_source != -1
+ && cpt_sources_array[cur_source].cs_flag == '.')))
{
if (first == NULL && STRNCMP(ins_compl_leader(),
compl->cp_str.string, ins_compl_leader_len()) == 0)
@@ -6076,7 +6077,7 @@ find_next_completion_match(
compl_shown_match = compl_shown_match->cp_next;
--compl_pending;
}
- if (compl_pending < 0 && compl_shown_match->cp_prev != NULL)
+ else if (compl_pending < 0 && compl_shown_match->cp_prev != NULL)
{
compl_shown_match = compl_shown_match->cp_prev;
++compl_pending;
diff --git a/src/version.c b/src/version.c
index d2d4b141c..ddac9aa6d 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 */
+/**/
+ 380,
/**/
379,
/**/