facet_nested incompatible with facetted_pos_scales? about ggh4x HOT 4 CLOSED

# Subet some example data
DATA <- mpg[mpg$manufacturer %in% c("dodge", "ford") & mpg$class %in% c("pickup", "suv"),]

# Set custom x axes breaks
CUSTOM.BREAKS <- list(
  scale_x_continuous(breaks = c(5, 6, 17, 23)), # Top left plot, will only plot data, no axes values
  scale_x_continuous(breaks = c(0, 10, 15, 20, 25), limits = c(0, NA)), # Top right plot, 
                                                                        honours the lower limit, 
                                                                        so shows '0' and '10' on the axes, but not 15+
  scale_x_continuous(breaks = c(0, 10, 15, 20, 25), limits = c(0, 25)), # Second from top on left, 
                                                                        shows full range of values.
  scale_x_continuous(breaks = c(5, 6, 17, 23)),
  scale_x_continuous(breaks = c(10, 20, 30)),
  scale_x_continuous(breaks = c(9, 10, 11, 12, 13, 14, 15, 16, 17, 18)),
  scale_x_continuous(breaks = c(11, 22, 33)),
  scale_x_continuous(breaks = c(8, 16, 24))
)

# Set strip theme
PLOT.STRIPS <- strip_nested(
  text_y = elem_list_text(
    colour = c(rep("white", 2), rep("black", 4))),
  background_y = elem_list_rect(
    fill = c("#210c4a", "#8a226a", rep(c("#bc3754", "#f9cb35"), 2))),
  by_layer_y = FALSE
)

# Plot
ggplot(DATA, aes(cty, hwy)) +
  geom_point() +
  facet_grid2(year + class ~ manufacturer, scales = "free", independent = "x", axes = "y", 
                         remove_labels = "y", strip = PLOT.STRIPS) +
  facetted_pos_scales(x = CUSTOM.BREAKS)