Commit c61ce962cfdef3fc756850132eb9f76cb7a57ba5
2021-06-10T17:33:29
[buffer] In hb_buffer_get_positions(), return NULL if inside message callback As discussed in https://github.com/harfbuzz/harfbuzz/issues/2468#issuecomment-645666066 Part of fixing https://github.com/harfbuzz/harfbuzz/issues/2468