Missing dental diacritics

[bambooforest]

library(tidyverse)

phoible <- read_csv(url('https://github.com/phoible/dev/blob/master/data/phoible.csv?raw=true'), col_types=c(InventoryID='i', Marginal='l', .default='c'))

phoible %>% filter(Phoneme == "t̪s")

phoible %>% filter(Phoneme == "ts̪")

cf.

macleginn/eurphon-parse-search#3