$ git clone -n https://src.fedoraproject.org/rpms/rust-time.git /var/lib/mock/f40-build-2144760-50871/root/chroot_tmpdir/scmroot/rust-time
Cloning into '/var/lib/mock/f40-build-2144760-50871/root/chroot_tmpdir/scmroot/rust-time'...
$ git fetch origin 67bbdb57cff5f3d3dab9083b9fc1aa5c5cca900f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-time
 * [new ref]         67bbdb57cff5f3d3dab9083b9fc1aa5c5cca900f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 67bbdb5 Update to version 0.3.30; Fixes RHBZ#2244157