disable ZFS mnttab_cache

Author: gronke

libioc/ZFS.py

@@ -280,7 +280,7 @@ def get_zfs(
     history_prefix: str="<iocage>"
 ) -> ZFS:
     """Get an instance of iocages enhanced ZFS class."""
-    zfs = ZFS(history=history, history_prefix=history_prefix)
+    zfs = ZFS(history=history, history_prefix=history_prefix, mnttab_cache=False)
     zfs.logger = libioc.helpers_object.init_logger(zfs, logger)
     return zfs