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-rw-r--r--Src/Zle/zle_hist.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/Src/Zle/zle_hist.c b/Src/Zle/zle_hist.c
index 434735de9..581ca4979 100644
--- a/Src/Zle/zle_hist.c
+++ b/Src/Zle/zle_hist.c
@@ -1220,10 +1220,12 @@ doisearch(char **args, int dir, int pattern)
char *patbuf = ztrdup(sbuf);
char *patstring;
/*
- * Do not use static pattern buffer (PAT_STATIC) since we call zle hooks,
- * which might call other pattern functions. Use PAT_ZDUP instead.
- * Use PAT_NOANCH because we don't need the match
- * anchored to the end, even if it is at the start.
+ * Do not use static pattern buffer (PAT_STATIC) since we
+ * call zle hooks, which might call other pattern
+ * functions. Use PAT_ZDUP because we re-use the pattern
+ * in subsequent loops, so we can't pushheap/popheap.
+ * Use PAT_NOANCH because we don't need the match anchored
+ * to the end, even if it is at the start.
*/
int patflags = PAT_ZDUP|PAT_NOANCH;
if (sbuf[0] == '^') {