$ git clone -n https://src.fedoraproject.org/rpms/rust-dirs2.git /var/lib/mock/f40-build-2035953-48007/root/chroot_tmpdir/scmroot/rust-dirs2
Cloning into '/var/lib/mock/f40-build-2035953-48007/root/chroot_tmpdir/scmroot/rust-dirs2'...
$ git fetch origin eb6b0b5148dfbe21d1325e12980f3777733e5d1d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-dirs2
 * [new ref]         eb6b0b5148dfbe21d1325e12980f3777733e5d1d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eb6b0b5 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild