Irrelevant 'beside' warning for bar plot without groups

[grantmcdermott]

tinyplot::tinyplot(extra ~ ID, data = sleep, type = "barplot")
#> Warning in (function (datapoints, col, bg, lty, lwd, palette, xlab = NULL, :
#> 'beside' must be TRUE if there are negative 'y' values

^{Created on 2025-04-10 with reprex v2.1.1}

[zeileis]

Good catch! PR #371 should address this.