$ git clone -n https://src.fedoraproject.org/rpms/imake.git /var/lib/mock/f45-build-14065-456/root/chroot_tmpdir/scmroot/imake
Cloning into '/var/lib/mock/f45-build-14065-456/root/chroot_tmpdir/scmroot/imake'...
$ git fetch origin b09182d73807779a8de5f2442117a1d1d10ee874:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/imake
 * [new ref]         b09182d73807779a8de5f2442117a1d1d10ee874 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b09182d Drop x86_32