$ git clone -n https://github.com/xcp-ng-rpms/openssl-compat-10.git /var/lib/mock/v8.3-u-pcoval2-10360-28921/root/chroot_tmpdir/scmroot/openssl-compat-10
Cloning into '/var/lib/mock/v8.3-u-pcoval2-10360-28921/root/chroot_tmpdir/scmroot/openssl-compat-10'...
$ git fetch origin 05986d96a83cbc208c740ee20369cae9d36137df:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/openssl-compat-10
 * [new ref]         05986d96a83cbc208c740ee20369cae9d36137df -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 05986d9 bump release for test build