$ git clone -n https://git.cclinux.org/stage/rpms/osbuild.git /var/lib/mock/dist-circle8-build-111744-68507/root/chroot_tmpdir/scmroot/osbuild
Cloning into '/var/lib/mock/dist-circle8-build-111744-68507/root/chroot_tmpdir/scmroot/osbuild'...
$ git fetch origin a98778dd78d5d53585e06e6df060baa15f22e21b:KOJI_FETCH_HEAD
From https://git.cclinux.org/stage/rpms/osbuild
 * [new ref]         a98778dd78d5d53585e06e6df060baa15f22e21b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a98778d import osbuild-93-1.el8