coalesce(NULL,foo) returns NULL #3826
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## master #3826 +/- ##
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Coverage 99.42% 99.42%
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Files 71 71
Lines 13399 13399
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Hits 13322 13322
Misses 77 77
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Part resolves
mlrfor #3581This was only revealed because
data.table::coalescemasksBBmisc::coalescein this case (dplyr::coalescein others). In other words, by exporting coalesce we are inflicting the new function on packages like mlr. There was a suggestion (#3754) that we should renamecoalesceasfcoalesce, so that was a good idea (reopened). We can still optimizecoalescetofcoalescewithinDT[...].