$ git clone -n https://src.fedoraproject.org/rpms/rust-socket2.git /var/lib/mock/f40-build-2063788-49167/root/chroot_tmpdir/scmroot/rust-socket2
Cloning into '/var/lib/mock/f40-build-2063788-49167/root/chroot_tmpdir/scmroot/rust-socket2'...
$ git fetch origin eee02842e0b4de5f144ffffd8f3b1cdca2d60828:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-socket2
 * [new ref]         eee02842e0b4de5f144ffffd8f3b1cdca2d60828 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eee0284 Update to version 0.5.5; Fixes RHBZ#2245326