Revdep: wrong properties

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Problem

The issue emerged from a reverse dependency check 9f80c8c and affects an estimated 8 packages.
The issue comes from us transitioning classes to S7, which is strict about the types of properties in a way ggplot2 wasn't before. The issue typically presents itself in the following shape:

ggplot2::element_text(family = TRUE, colour = 1.25)
#> Error: <ggplot2::element_text> object properties are invalid:
#> - @family must be <NULL> or <character>, not <logical>
#> - @colour cannot be a decimal number, but could be an integer.

Solution

I think allowing all types of properties is a step backward, so the right way forward is to prevent incorrect properties at the reverse dependency level.

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Informed per email:

• RamanMP