$ git clone -n https://src.fedoraproject.org/rpms/plymouth-theme-breeze.git /var/lib/mock/f42-build-862548-170850/root/chroot_tmpdir/scmroot/plymouth-theme-breeze
Cloning into '/var/lib/mock/f42-build-862548-170850/root/chroot_tmpdir/scmroot/plymouth-theme-breeze'...
$ git fetch origin 8034e93d11bbee698dae3cc4a53b4fe967b5ac4a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plymouth-theme-breeze
 * [new ref]         8034e93d11bbee698dae3cc4a53b4fe967b5ac4a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8034e93 6.2.4