[Bug]: Missing variable label for factor variables only

[lcd2yyz]

What happened?

This issue appeared in teal.slice v0.5.1.9005, and still persist in the latest version v0.5.1.9008.

Using Safety-Dev app as example, https://genentech.shinyapps.io/nest_safety_dev/

Variable label is present for numerical, date and character variables, but missing for factor variables only (SAFFL and SEX).

sessionInfo()

R version 4.3.2 (2023-10-31)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 22.04.4 LTS

Matrix products: default
BLAS:   /usr/lib/x86_64-linux-gnu/atlas/libblas.so.3.10.3 
LAPACK: /usr/lib/x86_64-linux-gnu/atlas/liblapack.so.3.10.3;  LAPACK version 3.10.0

locale:
 [1] LC_CTYPE=C.UTF-8       LC_NUMERIC=C           LC_TIME=C.UTF-8       
 [4] LC_COLLATE=C.UTF-8     LC_MONETARY=C.UTF-8    LC_MESSAGES=C.UTF-8   
 [7] LC_PAPER=C.UTF-8       LC_NAME=C              LC_ADDRESS=C          
[10] LC_TELEPHONE=C         LC_MEASUREMENT=C.UTF-8 LC_IDENTIFICATION=C   

time zone: Etc/UTC
tzcode source: system (glibc)

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

other attached packages:
 [1] sparkline_2.0                    nestcolor_0.1.2.9011            
 [3] dplyr_1.1.4                      random.cdisc.data_0.3.15        
 [5] teal.modules.clinical_0.9.1.9018 tern_0.9.5.9012                 
 [7] rtables_0.6.9.9005               magrittr_2.0.3                  
 [9] formatters_0.5.8.9003            teal.modules.general_0.3.0.9039 
[11] teal.transform_0.5.0.9009        teal_0.15.2.9050                
[13] teal.slice_0.5.1.9008            teal.data_0.6.0.9006            
[15] teal.code_0.5.0.9007             ggmosaic_0.3.3                  
[17] ggplot2_3.5.1                    shiny_1.9.1                     

loaded via a namespace (and not attached):
 [1] tidyselect_1.2.1         viridisLite_0.4.2        fastmap_1.2.0           
 [4] lazyeval_0.2.2           shinyjs_2.1.0            promises_1.3.0          
 [7] digest_0.6.36            estimability_1.5.1       timechange_0.3.0        
[10] mime_0.12                tern.gee_0.1.4.9003      lifecycle_1.0.4         
[13] survival_3.7-0           compiler_4.3.2           sass_0.4.9              
[16] rlang_1.1.4              tools_4.3.2              utf8_1.2.4              
[19] yaml_2.3.10              data.table_1.15.4        knitr_1.48              
[22] htmlwidgets_1.6.4        withr_3.0.1              purrr_1.0.2             
[25] shinyWidgets_0.8.6       geepack_1.3.11           grid_4.3.2              
[28] fansi_1.0.6              teal.logger_0.2.0.9006   xtable_1.8-4            
[31] colorspace_2.1-1         future_1.34.0            emmeans_1.10.3          
[34] globals_0.16.3           scales_1.3.0             MASS_7.3-60.0.1         
[37] cli_3.6.3                mvtnorm_1.2-5            rmarkdown_2.27          
[40] generics_0.1.3           httr_1.4.7               cachem_1.1.0            
[43] stringr_1.5.1            splines_4.3.2            parallel_4.3.2          
[46] vctrs_0.6.5              Matrix_1.6-5             jsonlite_1.8.8          
[49] ggrepel_0.9.5            listenv_0.9.1            crosstalk_1.2.1         
[52] teal.widgets_0.4.2.9017  fontawesome_0.5.2        plotly_4.10.4           
[55] jquerylib_0.1.4          tidyr_1.3.1              glue_1.7.0              
[58] parallelly_1.38.0        codetools_0.2-20         DT_0.33                 
[61] lubridate_1.9.3          stringi_1.8.4            gtable_0.3.5            
[64] later_1.3.2              shinycssloaders_1.1.0    munsell_0.5.1           
[67] tibble_3.2.1             logger_0.3.0             pillar_1.9.0            
[70] htmltools_0.5.8.1        R6_2.5.1                 Rdpack_2.6.1            
[73] evaluate_0.24.0          lattice_0.22-6           rbibutils_2.2.16        
[76] backports_1.5.0          memoise_2.0.1            broom_1.0.6             
[79] bslib_0.8.0              teal.reporter_0.3.1.9010 httpuv_1.6.15           
[82] Rcpp_1.0.13              shinyvalidate_0.1.3      nlme_3.1-165            
[85] checkmate_2.3.2          xfun_0.46                forcats_1.0.0           
[88] pkgconfig_2.0.3

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