Suppress multiple match warning

[DavisVaughan]

This PR makes your package compatible with the next version of dplyr:

The join functions in dplyr (like left_join()) now return a warning by default when a row in x matches multiple rows in y. While this is typical SQL behavior, it is often unexpected during data analysis (many people don't even know it is possible), so we've decided to make this a warning. In dplyr 1.1.0, you silence this warning with multiple = "all". In the meantime, to be compatible with both dev and CRAN dplyr we need to work around broken tests of yours that were expecting no warnings. I've done that by suppressing the warnings in the join calls that caused errors. You can switch to explicitly setting multiple = "all" instead after the dplyr 1.1.0 release, but this should work for both dev and CRAN dplyr in the meantime.

We plan to submit dplyr 1.1.0 on January 27th.

This should be compatible with both dev and CRAN dplyr. It would help us out if you could go ahead and send a patch version of your package to CRAN ahead of time! Thanks!

[polettif]

Thanks for the heads up. Small note, shouldn't suppress_matches_multiple_warning be put around all *_join calls within the package? I can handle this if necessary.

[DavisVaughan]

I've only put it around ones that cause an error in the package (I think). This is really just a patch, once dplyr 1.1.0 is out you should remove this and set the multiple = "all" argument of the join function instead.

[polettif]

Ah I see, thanks.