$ git clone -n https://src.fedoraproject.org/rpms/rust-cargo-insta.git /var/lib/mock/f40-build-2722944-73099/root/chroot_tmpdir/scmroot/rust-cargo-insta
Cloning into '/var/lib/mock/f40-build-2722944-73099/root/chroot_tmpdir/scmroot/rust-cargo-insta'...
$ git fetch origin cd63f1915b21d4bb0f48980b59a03e1edf67e041:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-cargo-insta
 * [new ref]         cd63f1915b21d4bb0f48980b59a03e1edf67e041 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cd63f19 Update to version 1.38.0; Fixes RHBZ#2265007