$ git clone -n https://src.fedoraproject.org/rpms/texlive-base.git /var/lib/mock/f41-build-side-1-2670568-29059/root/chroot_tmpdir/scmroot/texlive-base
Cloning into '/var/lib/mock/f41-build-side-1-2670568-29059/root/chroot_tmpdir/scmroot/texlive-base'...
$ git fetch origin 45c601214d13987655ece5ab0919673f20d4f269:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/texlive-base
 * [new ref]         45c601214d13987655ece5ab0919673f20d4f269 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 45c6012 fix license tag