Fixes export if only one note is there
Fixes export if only one note is there

See https://github.com/twostairs/paperwork/issues/480

JamborJan/paperwork,JamborJan/paperwork,neynah/paperwork,neynah/paperwork,neynah/paperwork,JamborJan/paperwork,neynah/paperwork,neynah/paperwork,JamborJan/paperwork