Since updating to 3.4.2, I typically receive this popup when launching Sourcetree

(Run 'git lfs pull' now?  The repository .. is using Gif LFS but it appears the binary content hasn't been downloaded yet.  Do you want to download the LFS files required by your current checkout?)

I seem to get this every time I launch SourceTree, even if nothing has changed (and everything is already downloaded and\or clicking "yes", etc.)