next_delay fix conversion

tasks/mtproto_task_abstraction.py

@@ -17,7 +17,13 @@ class MtProtoTask(AsyncTask, abc.ABC):
 
     async def _process(self) -> typing.Union[bool, int]:
         try:
-            return await self.process() * 1e9
+
+            result = await self.process()
+
+            if result is False:
+                return False
+
+            return result * 1e9
 
         except FloodWait as error:
             return int(error.MESSAGE.split("_")[-1]) * 1e9