The fix caused wrong `break from proc-closure` error; fix
MODIFY
src/vm.c
src/vm.c
@@ -2055,9 +2055,6 @@ RETRY_TRY_BLOCK:
else {
struct REnv *e = MRB_PROC_ENV(proc);
- if (e == mrb->c->cibase->env && proc != mrb->c->cibase->proc) {
- goto L_BREAK_ERROR;
- }
if (e->cxt != mrb->c) {
goto L_BREAK_ERROR;
}

The #3871 fix caused wrong `break from proc-closure` error; fix #3996