$ git clone -n https://github.com/xcp-ng-rpms/libtpms.git /var/lib/mock/v8.3-u-pcoval2-10416-28977/root/chroot_tmpdir/scmroot/libtpms
Cloning into '/var/lib/mock/v8.3-u-pcoval2-10416-28977/root/chroot_tmpdir/scmroot/libtpms'...
$ git fetch origin c170d50ad94529ea32b076190bb016bac07a6aed:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/libtpms
 * [new ref]         c170d50ad94529ea32b076190bb016bac07a6aed -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c170d50 bump release for test build