-invalid_ref NOT_MINGW "$ref"
-invalid_ref NOT_MINGW "$ref" --allow-onelevel
-invalid_ref NOT_MINGW "$ref" --refspec-pattern
-invalid_ref NOT_MINGW "$ref" '--refspec-pattern --allow-onelevel'
-invalid_ref NOT_MINGW "$ref" --normalize
-valid_ref NOT_MINGW "$ref" '--allow-onelevel --normalize'
-invalid_ref NOT_MINGW "$ref" '--refspec-pattern --normalize'
-valid_ref NOT_MINGW "$ref" '--refspec-pattern --allow-onelevel --normalize'
+invalid_ref !MINGW "$ref"
+invalid_ref !MINGW "$ref" --allow-onelevel
+invalid_ref !MINGW "$ref" --refspec-pattern
+invalid_ref !MINGW "$ref" '--refspec-pattern --allow-onelevel'
+invalid_ref !MINGW "$ref" --normalize
+valid_ref !MINGW "$ref" '--allow-onelevel --normalize'
+invalid_ref !MINGW "$ref" '--refspec-pattern --normalize'
+valid_ref !MINGW "$ref" '--refspec-pattern --allow-onelevel --normalize'