$ git clone -n https://src.fedoraproject.org/rpms/texlive-collection-xetex.git /var/lib/mock/f45-bootstrap-142-65/root/chroot_tmpdir/scmroot/texlive-collection-xetex
Cloning into '/var/lib/mock/f45-bootstrap-142-65/root/chroot_tmpdir/scmroot/texlive-collection-xetex'...
$ git fetch origin 0eb6a3f749a1ad4f057b29e7897607b8dee937d1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/texlive-collection-xetex
 * [new ref]         0eb6a3f749a1ad4f057b29e7897607b8dee937d1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0eb6a3f artificial release bump to avoid conflict from component migration