$ git clone -n https://src.fedoraproject.org/rpms/rust-defer-drop.git /var/lib/mock/f40-build-2655296-66910/root/chroot_tmpdir/scmroot/rust-defer-drop
Cloning into '/var/lib/mock/f40-build-2655296-66910/root/chroot_tmpdir/scmroot/rust-defer-drop'...
$ git fetch origin 3c50c055c3965d806403f44a2c7d7e1749ea4eb9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-defer-drop
 * [new ref]         3c50c055c3965d806403f44a2c7d7e1749ea4eb9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3c50c05 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild