BUGFIX: saving list with None to hdf5

Fixes issue #709 (closed) by implementing solution proposed by @colm.talbot.

After merge ebe10697, Bilby couldn't save the result to hdf5 file if it contained a list with None inside (for example if one of the used priors was initiated without a name).

mentioned in issue #709 (closed)

Thanks @tomasz.baka I want to run some more at scale tests to make sure this doesn't break anything surprising, but this looks good at an initial glance.

added <10 lines Bug labels

changed milestone to %2.2.1

requested review from @michael.williams

added 2 commits

• e841995b - 1 commit from branch lscsoft:master
• 0ae6bc58 - BUGFIX: saving list with None to hdf5

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mentioned in merge request !1305 (merged)

added 6 commits

• 0ae6bc58...2f53006d - 5 commits from branch lscsoft:master
• 94bb56ce - BUGFIX: saving list with None to hdf5

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approved this merge request

approved this merge request

merged