$ git clone -n https://src.fedoraproject.org/rpms/opensips.git /var/lib/mock/f39-build-1629192-39524/root/chroot_tmpdir/scmroot/opensips
Cloning into '/var/lib/mock/f39-build-1629192-39524/root/chroot_tmpdir/scmroot/opensips'...
$ git fetch origin 4638c262dcb9c45b68a00540c88a98a602958c10:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/opensips
 * [new ref]         4638c262dcb9c45b68a00540c88a98a602958c10 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4638c26 OpenSIPS ver. 3.4.2