a small change to bg task handling

Author: mikeshardmind

async_utils/__init__.py

@@ -13,4 +13,4 @@
 #   limitations under the License.
 
 
-__version__ = "7.0.2"
+__version__ = "7.0.3"

async_utils/bg_tasks.py

@@ -44,7 +44,8 @@ async def __aenter__(self: Self) -> Self:
         return self
 
     async def __aexit__(self, exc_type: type[Exception], exc: Exception, tb: TracebackType):
-        if tsks := self._tasks.copy():
+        while tsks := self._tasks.copy():
             _done, _pending = await asyncio.wait(tsks, timeout=self._exit_timeout)
             for task in _pending:
                 task.cancel()
+            await asyncio.sleep(0)