$ git clone -n https://src.fedoraproject.org/rpms/pam-kwallet.git /var/lib/mock/f40-build-2536480-61850/root/chroot_tmpdir/scmroot/pam-kwallet
Cloning into '/var/lib/mock/f40-build-2536480-61850/root/chroot_tmpdir/scmroot/pam-kwallet'...
$ git fetch origin 9d03d85e0d45cbe65626a9acb4ff2e806078d3d6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pam-kwallet
 * [new ref]         9d03d85e0d45cbe65626a9acb4ff2e806078d3d6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9d03d85 6.0.2