The latest development version's segment.color does not default to the same color as the text?

[lishinkou]

Summary

I am using the latest development version of ggrepel because I need to justify multi-line label as discussed in
https://stackoverflow.com/questions/54448262/justifying-lines-of-text-within-individual-ggrepel-labels

But with that version's geom_label_repel, somehow the segment.color does not default to the same color as the text, as is not the case with the version on CRAN.

Minimal code example

Here I'm borrowing the example from
https://cran.r-project.org/web/packages/ggrepel/vignettes/ggrepel.html

#devtools::install_github("slowkow/ggrepel")
dat <- subset(mtcars, wt > 2.75 & wt < 3.45)
dat$car <- rownames(dat)

set.seed(42)
x_limits <- c(3, NA)

ggplot(dat, aes(wt, mpg, label = car, color = factor(cyl))) +
  geom_vline(xintercept = x_limits, linetype = 3) +
  geom_point() +
  geom_label_repel(
    arrow = arrow(length = unit(0.03, "npc"), type = "closed", ends = "first"),
    force = 10,
    xlim  = x_limits
  ) +
  scale_color_discrete(name = "cyl")

The colors of the segments are supposed to be green/red but they turn out to be black?

Version information

Here is the output from sessionInfo() in my R session:

R version 4.0.0 (2020-04-24)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 18363)

[slowkow]

Thanks for the opening the issue and including an example with code and image.

Please share the entire output from sessionInfo(), so we can see the versions of your packages.

[lishinkou]

Here it is:

R version 4.0.0 (2020-04-24)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 18363)

Matrix products: default

locale:
[1] LC_COLLATE=English_United States.1252 
[2] LC_CTYPE=English_United States.1252   
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C                          
[5] LC_TIME=English_United States.1252    
system code page: 932

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] ggrepel_0.9.0 ggplot2_3.3.0

loaded via a namespace (and not attached):
 [1] Rcpp_1.0.4.6     rstudioapi_0.11  magrittr_1.5     tidyselect_1.1.0
 [5] munsell_0.5.0    colorspace_1.4-1 R6_2.4.1         rlang_0.4.6     
 [9] dplyr_0.8.5      tools_4.0.0      grid_4.0.0       gtable_0.3.0    
[13] withr_2.2.0      ellipsis_0.3.1   assertthat_0.2.1 digest_0.6.25   
[17] tibble_3.0.1     lifecycle_0.2.0  crayon_1.3.4     purrr_0.3.4     
[21] farver_2.0.3     vctrs_0.3.1      glue_1.4.1       labeling_0.3    
[25] compiler_4.0.0   pillar_1.4.4     scales_1.1.1     pkgconfig_2.0.3