fix: branch out delete payment (#2152)

lnbits/core/models.py

@@ -222,11 +222,17 @@ class Payment(FromRowModel):
             )
             await self.delete(conn)
         # wait at least 15 minutes before deleting failed outgoing payments
-        elif self.is_out and status.failed and self.time + 900 < int(time.time()):
+        elif self.is_out and status.failed:
+            if self.time + 900 < int(time.time()):
                 logger.warning(
                     f"Deleting outgoing failed payment {self.checking_id}: {status}"
                 )
                 await self.delete(conn)
+            else:
+                logger.warning(
+                    f"Tried to delete outgoing payment {self.checking_id}: "
+                    "skipping because it's not old enough"
+                )
         elif not status.pending:
             logger.info(
                 f"Marking '{'in' if self.is_in else 'out'}' "