roschaefer e24d8035b1 Fix this annoying bug with a tested helper
I don't know where the bug originates. But it can only be that either
`previousResult` or `fetchMore` result is sometimes undefined. This
should make the function bullet-proof for these situations.
2019-12-10 23:28:01 +01:00
..
2019-11-16 14:34:23 +01:00
2019-11-16 14:34:23 +01:00