Merge pull request #4396 from jkczyz/2026-02-fix-hanging-test

Fix thread starvation in `test_single_channel_multiple_mpp`

Author: TheBlueMatt

lightning/src/ln/chanmon_update_fail_tests.rs

@@ -4709,6 +4709,9 @@ fn test_single_channel_multiple_mpp() {
 				}
 				have_event = true;
 			}
+			if !have_event {
+				std::thread::yield_now();
+			}
 		}
 	});