$ git clone -n https://src.fedoraproject.org/rpms/libzrtpcpp.git /var/lib/mock/f45-build-17376-498/root/chroot_tmpdir/scmroot/libzrtpcpp
Cloning into '/var/lib/mock/f45-build-17376-498/root/chroot_tmpdir/scmroot/libzrtpcpp'...
$ git fetch origin 1c44680428284da14350bdc072ca509906a2f18f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libzrtpcpp
 * [new ref]         1c44680428284da14350bdc072ca509906a2f18f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1c44680 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild