let fill() handle data with a .direction column

[tjmahr]

My data had a column named .direction so there was an environment-vs-data-mask ambiguity that caused fill() to fail. I added !! to force evaluation of the .direction argument.

[tjmahr]

switching from !! .direction to .env$.direction based on the rlang docs

Note that in most cases you don't need injection with !!. For instance, the .data and .env pronouns provide more intuitive alternatives to injecting a column name and injecting a value.

[DavisVaughan]

Thanks!