$ git clone -n https://src.fedoraproject.org/rpms/rust-rpm-sequoia.git /var/lib/mock/f39-build-2575968-62201/root/chroot_tmpdir/scmroot/rust-rpm-sequoia
Cloning into '/var/lib/mock/f39-build-2575968-62201/root/chroot_tmpdir/scmroot/rust-rpm-sequoia'...
$ git fetch origin 3ef639d8350694d98d4728a1789273edf3b7cfe5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rpm-sequoia
 * [new ref]         3ef639d8350694d98d4728a1789273edf3b7cfe5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3ef639d Update to version 1.6.0; Fixes RHBZ#2260336