$ git clone -n https://src.fedoraproject.org/rpms/rust-git-interactive-rebase-tool.git /var/lib/mock/f41-build-side-1-3095879-39313/root/chroot_tmpdir/scmroot/rust-git-interactive-rebase-tool
Cloning into '/var/lib/mock/f41-build-side-1-3095879-39313/root/chroot_tmpdir/scmroot/rust-git-interactive-rebase-tool'...
$ git fetch origin 61b1a5d7b2d02dfa0558b5d51c424ca77b92aa50:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-git-interactive-rebase-tool
 * [new ref]         61b1a5d7b2d02dfa0558b5d51c424ca77b92aa50 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 61b1a5d Bump git2 dependency from 0.18 to 0.19