$ git clone -n https://src.fedoraproject.org/rpms/libzypp.git /var/lib/mock/f40-build-2480840-61628/root/chroot_tmpdir/scmroot/libzypp
Cloning into '/var/lib/mock/f40-build-2480840-61628/root/chroot_tmpdir/scmroot/libzypp'...
$ git fetch origin 21f8f405a08cee7629d5d359bbeebb95b89db8e4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libzypp
 * [new ref]         21f8f405a08cee7629d5d359bbeebb95b89db8e4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 21f8f40 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild