$ git clone -n https://src.fedoraproject.org/rpms/SDL2.git /var/lib/mock/f40-build-785150-133815/root/chroot_tmpdir/scmroot/SDL2
Cloning into '/var/lib/mock/f40-build-785150-133815/root/chroot_tmpdir/scmroot/SDL2'...
$ git fetch origin cb6b0beecce33bddb16c04ba6b89e2032a23b6b2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/SDL2
 * [new ref]         cb6b0beecce33bddb16c04ba6b89e2032a23b6b2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cb6b0be Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild