$ git clone -n https://src.fedoraproject.org/rpms/x2gokdriveclient.git /var/lib/mock/f38-build-side-42-init-devel-1407206-31287/root/chroot_tmpdir/scmroot/x2gokdriveclient
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1407206-31287/root/chroot_tmpdir/scmroot/x2gokdriveclient'...
$ git fetch origin 95bd92e52eb0e290b70b64bfe9a39f7526b558d9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/x2gokdriveclient
 * [new ref]         95bd92e52eb0e290b70b64bfe9a39f7526b558d9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 95bd92e Initial import