$ git clone -n https://src.fedoraproject.org/rpms/rust-fallible_collections.git /var/lib/mock/f40-build-2061820-49167/root/chroot_tmpdir/scmroot/rust-fallible_collections
Cloning into '/var/lib/mock/f40-build-2061820-49167/root/chroot_tmpdir/scmroot/rust-fallible_collections'...
$ git fetch origin 498372514e3f68261bac9101c82b0886e592160c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-fallible_collections
 * [new ref]         498372514e3f68261bac9101c82b0886e592160c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4983725 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild