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-rw-r--r--src/intervals.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/intervals.c b/src/intervals.c
index 5a88a8eb..68728349 100644
--- a/src/intervals.c
+++ b/src/intervals.c
@@ -132,7 +132,7 @@ static void set_sort_splice(struct expr *init, struct set *set)
set_to_range(init);
list_expr_sort(&init->expressions);
- if (!existing_set)
+ if (!existing_set || existing_set->errors)
return;
if (existing_set->init) {