$ git clone -n https://src.fedoraproject.org/rpms/perl-Image-Sane.git /var/lib/mock/f40-build-779238-130260/root/chroot_tmpdir/scmroot/perl-Image-Sane
Cloning into '/var/lib/mock/f40-build-779238-130260/root/chroot_tmpdir/scmroot/perl-Image-Sane'...
$ git fetch origin c4c1127a4e17ba8fe33929d2664cfdd4ded6d33e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Image-Sane
 * [new ref]         c4c1127a4e17ba8fe33929d2664cfdd4ded6d33e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c4c1127 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild