$ git clone -n https://src.fedoraproject.org/rpms/rust-treebitmap.git /var/lib/mock/f40-build-2654021-66904/root/chroot_tmpdir/scmroot/rust-treebitmap
Cloning into '/var/lib/mock/f40-build-2654021-66904/root/chroot_tmpdir/scmroot/rust-treebitmap'...
$ git fetch origin 6a950cf06c7b096d1dce304f4152268469a74920:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-treebitmap
 * [new ref]         6a950cf06c7b096d1dce304f4152268469a74920 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6a950cf Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild