--- a/hgext3rd/evolve/stablerangecache.py	Sun Aug 26 20:55:26 2018 +0200
+++ b/hgext3rd/evolve/stablerangecache.py	Mon Aug 27 00:18:06 2018 +0200
@@ -193,7 +193,7 @@
             util.makedirs(self._vfs.dirname(self._path))
         except OSError:
             return None
-        con = sqlite3.connect(self._path)
+        con = sqlite3.connect(self._path, timeout=30, isolation_level="IMMEDIATE")
         con.text_factory = str
         return con