$ git clone -n https://src.fedoraproject.org/rpms/commoncpp2.git /var/lib/mock/f45-build-4515-332/root/chroot_tmpdir/scmroot/commoncpp2
Cloning into '/var/lib/mock/f45-build-4515-332/root/chroot_tmpdir/scmroot/commoncpp2'...
$ git fetch origin f95aa428c116c25941e91c9b17bdaaff97e96f9d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/commoncpp2
 * [new ref]         f95aa428c116c25941e91c9b17bdaaff97e96f9d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f95aa42 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild