$ git clone -n https://github.com/xcp-ng-rpms/openssl-compat-10.git /var/lib/mock/v8.3-u-pcoval2-10371-28934/root/chroot_tmpdir/scmroot/openssl-compat-10
Cloning into '/var/lib/mock/v8.3-u-pcoval2-10371-28934/root/chroot_tmpdir/scmroot/openssl-compat-10'...
$ git fetch origin 859a4cecb34d64f3e1fa6a09fc773927d8d0b105:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/openssl-compat-10
 * [new ref]         859a4cecb34d64f3e1fa6a09fc773927d8d0b105 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 859a4ce bump release for test build