$ git clone -n https://src.fedoraproject.org/rpms/rust-rpick.git /var/lib/mock/f40-build-2288169-55772/root/chroot_tmpdir/scmroot/rust-rpick
Cloning into '/var/lib/mock/f40-build-2288169-55772/root/chroot_tmpdir/scmroot/rust-rpick'...
$ git fetch origin 568ac05aa094f7e86e63c7b54546ad9d881c86be:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rpick
 * [new ref]         568ac05aa094f7e86e63c7b54546ad9d881c86be -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 568ac05 Update to version 0.9.0; Fixes RHBZ#2144130