$ git clone -n https://src.fedoraproject.org/rpms/pam.git /var/lib/mock/f40-build-786672-134489/root/chroot_tmpdir/scmroot/pam
Cloning into '/var/lib/mock/f40-build-786672-134489/root/chroot_tmpdir/scmroot/pam'...
$ git fetch origin 6e02380a0fc76bb2ab1432502a9615c1040a56bc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pam
 * [new ref]         6e02380a0fc76bb2ab1432502a9615c1040a56bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6e02380 pam_unix: do not warn if password aging is disabled