$ git clone -n https://github.com/xcp-ng-rpms/xapi.git /var/lib/mock/v8.3-u-asultanov2-11423-29739/root/chroot_tmpdir/scmroot/xapi
Cloning into '/var/lib/mock/v8.3-u-asultanov2-11423-29739/root/chroot_tmpdir/scmroot/xapi'...
$ git fetch origin 36d628d2970c62da170bf787d7e829ad6b5704bf:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/xapi
 * [new ref]         36d628d2970c62da170bf787d7e829ad6b5704bf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 36d628d bump release for test build