$ git clone -n https://src.fedoraproject.org/rpms/rust-version-sync.git /var/lib/mock/f38-build-side-43-rust-devel-1398646-31112/root/chroot_tmpdir/scmroot/rust-version-sync
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1398646-31112/root/chroot_tmpdir/scmroot/rust-version-sync'...
$ git fetch origin 63264b883274c7b1d5c5c52a59882629afa05dff:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-version-sync
 * [new ref]         63264b883274c7b1d5c5c52a59882629afa05dff -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 63264b8 Update to version 0.9.5; Fixes RHBZ#2238175