$ git clone -n https://git.cclinux.org/stage/rpms/expat.git /var/lib/mock/dist-circle8_9-updates-build-112200-70037/root/chroot_tmpdir/scmroot/expat
Cloning into '/var/lib/mock/dist-circle8_9-updates-build-112200-70037/root/chroot_tmpdir/scmroot/expat'...
$ git fetch origin e29fa0b10821b9ca645fe1887dbbb033462d15fe:KOJI_FETCH_HEAD
From https://git.cclinux.org/stage/rpms/expat
 * [new ref]         e29fa0b10821b9ca645fe1887dbbb033462d15fe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e29fa0b import expat-2.2.5-11.el8_9.1