$ git clone -n https://src.fedoraproject.org/rpms/rust-webpki.git /var/lib/mock/f40-build-2084311-50003/root/chroot_tmpdir/scmroot/rust-webpki
Cloning into '/var/lib/mock/f40-build-2084311-50003/root/chroot_tmpdir/scmroot/rust-webpki'...
$ git fetch origin 8bb07122b7d81650e0b5a4bee344858be48341ef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-webpki
 * [new ref]         8bb07122b7d81650e0b5a4bee344858be48341ef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8bb0712 Update to version 0.22.4; Fixes RHBZ#2242792