Bugfix caching of param detected images and installed system.

pym/cl_distr.py

@@ -136,7 +136,7 @@ class DistributiveRepository:
         """Get info from content"""
         origfilename = filename
         if filename in DistributiveRepository.contentCache:
-            return DistributiveRepository.contentCache[filename]
+            return DistributiveRepository.contentCache[filename].copy()
         varsShare = self.varsShare
         distr = None
         # may be directory is isodir (directory which contains iso image)
@@ -184,7 +184,7 @@ class DistributiveRepository:
         if distr:
             distr.close()
         DistributiveRepository.contentCache[origfilename] = d
-        return d
+        return d.copy()
 
     def _getdistrinfo(self,filename):
         """Get information by distributive"""