$ git clone -n https://github.com/xcp-ng-rpms/swtpm.git /var/lib/mock/v8.3-u-pcoval2-10434-28996/root/chroot_tmpdir/scmroot/swtpm
Cloning into '/var/lib/mock/v8.3-u-pcoval2-10434-28996/root/chroot_tmpdir/scmroot/swtpm'...
$ git fetch origin 80fe022762308f856e4357da5aa265145416e153:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/swtpm
 * [new ref]         80fe022762308f856e4357da5aa265145416e153 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 80fe022 bump release for test build