Closes #138: Move a file: keep extension

tracim/tracim/lib/webdav/sql_resources.py

             workspace
         )
 
-
         with new_revision(self.content):
             if basename(destpath) != self.getDisplayName():
-                self.content_api.update_content(self.content, re.sub('\.[^\.]+$', '', self.provider.transform_to_bdd(basename(destpath))))
+                self.content_api.update_content(
+                    self.content,
+                    transform_to_bdd(basename(destpath)),
+                )
                 self.content_api.save(self.content)
             else:
                 self.content_api.move(