diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/nvim/eval/typval.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/nvim/eval/typval.c b/src/nvim/eval/typval.c index 1cc195ddc4..746cbbfe1c 100644 --- a/src/nvim/eval/typval.c +++ b/src/nvim/eval/typval.c @@ -479,11 +479,13 @@ void tv_list_extend(list_T *const l1, list_T *const l2, FUNC_ATTR_NONNULL_ARG(1, 2) { int todo = l2->lv_len; + listitem_T *const befbef = (bef == NULL ? NULL : bef->li_prev); + listitem_T *const saved_next = (befbef == NULL ? NULL : befbef->li_next); // We also quit the loop when we have inserted the original item count of // the list, avoid a hang when we extend a list with itself. for (listitem_T *item = l2->lv_first ; item != NULL && --todo >= 0 - ; item = item->li_next) { + ; item = (item == befbef ? saved_next : item->li_next)) { tv_list_insert_tv(l1, &item->li_tv, bef); } } |