$ git clone -n https://src.fedoraproject.org/rpms/rust-webpki-root-certs.git /var/lib/mock/f45-build-46149-831/root/chroot_tmpdir/scmroot/rust-webpki-root-certs
Cloning into '/var/lib/mock/f45-build-46149-831/root/chroot_tmpdir/scmroot/rust-webpki-root-certs'...
$ git fetch origin 5aa6b9645f3bedbdae8bb6e4867f9654389d2bc1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-webpki-root-certs
 * [new ref]         5aa6b9645f3bedbdae8bb6e4867f9654389d2bc1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5aa6b96 Update to version 1.0.9; Fixes RHBZ#2502016