Improved reset/key unset logic

Patterns and incrs are now unset as well

mfbatch/commands.py

@@ -63,6 +63,23 @@ class CommandEnv:
 
         self.incr.pop(k, None)
         self.patterns.pop(k, None)
+        
+        # delete all patterns that refer to the key
+        refs = []
+        for pattern_key, (frm, _, _) in self.patterns:
+            if frm == k:
+                refs.append(pattern_key)
+
+        for ref in refs:
+            del self.patterns[ref]
+
+
+    def reset_keys(self):
+        all_keys = list(self.metadatums.keys())
+
+        for key in all_keys:
+            self.unset_key(key)
+
 
     def set_pattern(self, to: str, frm: str, pattern: str, repl: str):
         """