Sorry, the object passed to the "drawable" parameter was incorrect. It it fixed in a new version of the patch in the branch.
I also initially misunderstood the concept of requesting a merge in Launchpad; I only wanted to link the bug branch with the ubuntu branch for reviews. OTOH, the branch is retested and fixed to do what it was supposed to do.
Sorry, the object passed to the "drawable" parameter was incorrect. It it fixed in a new version of the patch in the branch.
I also initially misunderstood the concept of requesting a merge in Launchpad; I only wanted to link the bug branch with the ubuntu branch for reviews. OTOH, the branch is retested and fixed to do what it was supposed to do.