skip particle timestep data collection in space_split.c when running without RT

Issue reported by Yolan in !1749 .

For new progeny cells, when running without RT, particle time bins are zero. Then those time bins get collected to determine the time step vars for the progeny cell, leading to wrong results.

This oughtta fix it, but I haven't had time to test it yet.

ToDo's Mladen:

• Testing this fix
• Check that there aren't other places where this could be an issue
• run the bloody formatter

added bug radiative transfer labels

assigned to @mivkov

mentioned in merge request !1749

changed the description

added 27 commits

• 529d1a84...47c1d1c9 - 26 commits from branch master
• 55dd8c2a - skip particle timestep data collection in space_split.c when running without RT

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added 4 commits

• 55dd8c2a...c029e413 - 2 commits from branch master
• 728a6cb2 - skip particle timestep data collection in space_split.c when running without RT
• ea7950dc - applied formatting tool

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marked the checklist item Testing this fix as completed

marked the checklist item Check that there aren't other places where this could be an issue as completed

marked the checklist item run the bloody formatter as completed

Ok, this should be good to go. All other places where we collect timestep data as loops over particles are covered by checks already.

marked this merge request as ready

assigned to @matthieu and unassigned @mivkov

requested review from @yuyttenhove

approved this merge request

Happy to merge if @yuyttenhove is too.

I just checked and this fix indeed solves the issue I ran into as well. Thanks!

approved this merge request

merged

mentioned in commit 3f596584