$ git clone -n https://src.fedoraproject.org/rpms/rust-ctor0.1.git /var/lib/mock/f40-build-2652035-66890/root/chroot_tmpdir/scmroot/rust-ctor0.1
Cloning into '/var/lib/mock/f40-build-2652035-66890/root/chroot_tmpdir/scmroot/rust-ctor0.1'...
$ git fetch origin ca8865d08dbb2098dc6aac5641c4395db8b6d4f2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ctor0.1
 * [new ref]         ca8865d08dbb2098dc6aac5641c4395db8b6d4f2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ca8865d Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild