$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-Timer.git /var/lib/mock/f40-build-2309204-57338/root/chroot_tmpdir/scmroot/perl-Test-Timer
Cloning into '/var/lib/mock/f40-build-2309204-57338/root/chroot_tmpdir/scmroot/perl-Test-Timer'...
$ git fetch origin 4f7da40dd794028a8456bf85645da3efd8bfffcc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-Timer
 * [new ref]         4f7da40dd794028a8456bf85645da3efd8bfffcc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4f7da40 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild