$ git clone -n https://src.fedoraproject.org/rpms/odcs.git /var/lib/mock/f39-build-1819773-41839/root/chroot_tmpdir/scmroot/odcs
Cloning into '/var/lib/mock/f39-build-1819773-41839/root/chroot_tmpdir/scmroot/odcs'...
$ git fetch origin e4b81f6b817d5f39f236eebb7e7ede24e6cd7a33:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/odcs
 * [new ref]         e4b81f6b817d5f39f236eebb7e7ede24e6cd7a33 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e4b81f6 0.7.0