Invoke ensure clauses before switching context from fibers; fix #3662

1 files changed, 3 insertions, 0 deletions

diff --git a/src/vm.c b/src/vm.c
index 23e20b826..6d4aac147 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -1870,6 +1870,9 @@ RETRY_TRY_BLOCK:
           if (mrb->c->ci == mrb->c->cibase && mrb->c->ci->pc) {
             struct mrb_context *c = mrb->c;
 
+            while (eidx > 0) {
+              ecall(mrb, --eidx);
+            }
             mrb->c = c->prev;
             c->prev = NULL;
             ci = mrb->c->ci;