$ git clone -n https://src.fedoraproject.org/rpms/rust-ouroboros.git /var/lib/mock/f40-build-2326291-58830/root/chroot_tmpdir/scmroot/rust-ouroboros
Cloning into '/var/lib/mock/f40-build-2326291-58830/root/chroot_tmpdir/scmroot/rust-ouroboros'...
$ git fetch origin aeee883731f63289906b3399eb5bedb637f7e947:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ouroboros
 * [new ref]         aeee883731f63289906b3399eb5bedb637f7e947 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aeee883 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild