$ git clone -n https://src.fedoraproject.org/rpms/proxygen.git /var/lib/mock/f42-build-3486993-45834/root/chroot_tmpdir/scmroot/proxygen
Cloning into '/var/lib/mock/f42-build-3486993-45834/root/chroot_tmpdir/scmroot/proxygen'...
$ git fetch origin a5a52d39ff14f2df6b83a3de10da748725cb622f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/proxygen
 * [new ref]         a5a52d39ff14f2df6b83a3de10da748725cb622f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a5a52d3 Update to version 2025.02.03.00; Fixes: RHBZ#2309480