$ git clone -n https://src.fedoraproject.org/rpms/perl-HTTP-DAV.git /var/lib/mock/f45-build-23985-601/root/chroot_tmpdir/scmroot/perl-HTTP-DAV
Cloning into '/var/lib/mock/f45-build-23985-601/root/chroot_tmpdir/scmroot/perl-HTTP-DAV'...
$ git fetch origin f4330684aa18a4a85b05393e1826c702e6c047df:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-HTTP-DAV
 * [new ref]         f4330684aa18a4a85b05393e1826c702e6c047df -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f433068 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild