$ git clone -n https://src.fedoraproject.org/rpms/perl-Net-CardDAVTalk.git /var/lib/mock/f45-build-25226-610/root/chroot_tmpdir/scmroot/perl-Net-CardDAVTalk
Cloning into '/var/lib/mock/f45-build-25226-610/root/chroot_tmpdir/scmroot/perl-Net-CardDAVTalk'...
$ git fetch origin 60c14cdd366dfeab37e730aa96cf8e448db90fa8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Net-CardDAVTalk
 * [new ref]         60c14cdd366dfeab37e730aa96cf8e448db90fa8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 60c14cd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild