Import lifecycle

[romainfrancois]

This seems to address #3900

I don't really understand why though 🤷‍♂

[thomasp85]

I really don't like doing this without understanding the root cause... we have been working a lot on cutting dependencies so this runs a bit counter to it...

[clauswilke]

At some point we re-exported some dplyr functions for some reason. I don't remember the details, but it was necessary at the time. Do we still do that? If yes I bet that's the root cause.

[clauswilke]

ggplot2/R/zzz.r

Lines 54 to 59 in 3ddfc3f

	# To avoid namespace clash with dplyr.
	# It seems surprising that this hack works
	if (requireNamespace("dplyr", quietly = TRUE)) {
	vars <<- dplyr::vars
	}
	}

[romainfrancois]

Updated based on conversation in #3900