$ git clone -n https://src.fedoraproject.org/rpms/rust-pest_meta.git /var/lib/mock/f39-build-2250466-54034/root/chroot_tmpdir/scmroot/rust-pest_meta
Cloning into '/var/lib/mock/f39-build-2250466-54034/root/chroot_tmpdir/scmroot/rust-pest_meta'...
$ git fetch origin d7ad716baa36ae9a55e9a20125ed4eac24b029c4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pest_meta
 * [new ref]         d7ad716baa36ae9a55e9a20125ed4eac24b029c4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d7ad716 Update to version 2.7.6; Fixes RHBZ#2240740