Fix repetition of keys in platform_map

Author: bfloch

src/rez/tests/data/config/test_conditional.py

@@ -2,7 +2,7 @@
 
 platform_map = {
     "arch": {
-        ".*": "IMPOSSIBLE_ARCH",
+        "^.*$": "IMPOSSIBLE_ARCH",
     },
 }
 

src/rez/tests/test_config.py

@@ -72,7 +72,7 @@ def test_conditional_overrides(self):
 
         c = Config([self.root_config_file], locked=True)
         c.override("platform_map", {
-            "os": {".*": "IMPOSSIBLE_OS"},
+            "os": {"^.*$": "IMPOSSIBLE_OS"},
         })
 
         c.validate_data()

src/rez/utils/platform_.py

@@ -62,8 +62,8 @@ def _platform_mapped(self, key, value):
         # The function name is used as primary key
         entry = platform_map.get(key)
         if entry:
-            for key, value in entry.items():
-                value, changes = re.subn(key, value, value)
+            for key, map_value in entry.items():
+                value, changes = re.subn(key, map_value, value)
                 if changes > 0:
                     break