The problem with patching this particular bug is that the commits submitted by Alec and myself are spread out over many small changes. There is no one single commit that fixes it all at once. In addition to the commits listed on that particular bug, there are some other changes to the Role code and some database modifications needed in order to get the new plugin (which uses OMP's new filter structure) working.
How urgent are your import needs? My suggestion, if you can wait a week or so, would be to upgrade to OMP 1.1.1 when it is released. All of these changes will be rolled into it, and the necessary database modifications would be made during the upgrade process automatically.
Otherwise, I can attempt to diff between the current OMP 1.1 stable branch and the release you have and create some sort of mega patch. But I may miss something, and rolling back from that may not be a lot of fun if there is a problem.