Comment 1 for bug 717937

Hi Andrew,

This seems to be triggered by the fetch-all-tags code that was recently introduced. It'd be great if we could come up with some way that doesn't necessarily require get_parent_map() calls to fetch tags. E.g. git and hg already have existing mechanisms as part of their object fetch implementation to fetch tags so the graph inspection is not necessary and in fact breaks cloning at the moment.