as_tibble() drops grouped_df class

[krlmlr]

From rnabioco/valr#338 (comment):

6d53680

library(tidyverse)

tibble(a = 1:3) %>%
  group_by(a) %>%
  as_tibble()
#> # A tibble: 3 x 1
#>       a
#>   <int>
#> 1     1
#> 2     2
#> 3     3

^{Created on 2018-11-10 by the reprex package (v0.2.1.9000)}

v1.4.2

library(tidyverse)

tibble(a = 1:3) %>%
  group_by(a) %>%
  as_tibble()
#> # A tibble: 3 x 1
#> # Groups:   a [3]
#>       a
#>   <int>
#> 1     1
#> 2     2
#> 3     3

^{Created on 2018-11-10 by the reprex package (v0.2.1)}

Options

• Document as breaking change (this would be consistent with as_tibble scrubs data.table class #181 and with the current behavior of as.data.frame())
• Revisit (needs a test too)

[krlmlr]

Document as breaking change.

[github-actions]

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