$ git clone -n https://src.fedoraproject.org/rpms/gitit.git /var/lib/mock/f39-build-2502914-61682/root/chroot_tmpdir/scmroot/gitit
Cloning into '/var/lib/mock/f39-build-2502914-61682/root/chroot_tmpdir/scmroot/gitit'...
$ git fetch origin e2d6579e1652d9565afaa5200071da157b6d3b60:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gitit
 * [new ref]         e2d6579e1652d9565afaa5200071da157b6d3b60 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e2d6579 minor doc file related packaging tweaks