$ git clone -n https://src.fedoraproject.org/rpms/oxygen-gtk2.git /var/lib/mock/f40-build-803380-144255/root/chroot_tmpdir/scmroot/oxygen-gtk2
Cloning into '/var/lib/mock/f40-build-803380-144255/root/chroot_tmpdir/scmroot/oxygen-gtk2'...
$ git fetch origin 3de5b5f7ae96b089dd5bce861587ad92e63ad1dc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/oxygen-gtk2
 * [new ref]         3de5b5f7ae96b089dd5bce861587ad92e63ad1dc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3de5b5f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild