$ git clone -n https://src.fedoraproject.org/rpms/pkgtreediff.git /var/lib/mock/f40-build-777548-129389/root/chroot_tmpdir/scmroot/pkgtreediff
Cloning into '/var/lib/mock/f40-build-777548-129389/root/chroot_tmpdir/scmroot/pkgtreediff'...
$ git fetch origin 7c2ea0d44e608a0400b6c99d1cc6c445e2be5634:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pkgtreediff
 * [new ref]         7c2ea0d44e608a0400b6c99d1cc6c445e2be5634 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7c2ea0d Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild