You didn't include the right fix in igraph 0.8.4

Hi, I recently updates the igraph to 0.8.4, for testing whether I encounter a new bug, and obviously the official release 0.8.4 didn’t include the right fix mentioned in

So the testing code in that post still failed with “invalid attributes”, and I saw cattributes.c still wrongly free the new attribute value.

Edit: I use the source code for visual studio

The current master branch, due to become 0.8.5, should have this resolved. Can you try it and confirm that everything is fine? If you don’t have the possibility to create the source package for MSVC (instructions), let me know and I’ll make a source package for you tomorrow.