$ git clone -n https://src.fedoraproject.org/rpms/xfsprogs.git /var/lib/mock/f45-build-38896-730/root/chroot_tmpdir/scmroot/xfsprogs
Cloning into '/var/lib/mock/f45-build-38896-730/root/chroot_tmpdir/scmroot/xfsprogs'...
$ git fetch origin 630fc6523d1a1ed17d158c88aa1198815c20680a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xfsprogs
 * [new ref]         630fc6523d1a1ed17d158c88aa1198815c20680a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 630fc65 Update to upstream v7.1.1