$ git clone -n https://src.fedoraproject.org/rpms/xpad.git /var/lib/mock/f40-build-1922808-25101/root/chroot_tmpdir/scmroot/xpad
Cloning into '/var/lib/mock/f40-build-1922808-25101/root/chroot_tmpdir/scmroot/xpad'...
$ git fetch origin 14f3e3fe068fee68b33ffe354f8e0feb93bea8e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xpad
 * [new ref]         14f3e3fe068fee68b33ffe354f8e0feb93bea8e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 14f3e3f fix changelog date, the 29th was a thursday