Minimal code to repro hb_coretext memory leak

main.cc

#include <stdlib.h>
#include <stdio.h>
#include <hb.h>

int main(int argc, char **argv) {
    FILE *f = fopen("/Library/Fonts/Tahoma.ttf", "rb");
    fseek(f, 0, SEEK_END);
    long fsize = ftell(f);
    fseek(f, 0, SEEK_SET);

    char* font = (char*)malloc(fsize + 1);
    fread(font, fsize, 1, f);
    fclose(f);

    hb_blob_t *hb_blob = hb_blob_create(font, fsize, HB_MEMORY_MODE_WRITABLE, NULL, 0);

    const char *shapers[] = { "coretext", 0 }; // not any leak when "ot" used instead
    for (int i = 0; i < 100; ++i) {
        hb_face_t *hb_face = hb_face_create(hb_blob, 0);
        hb_font_t *hb_font = hb_font_create(hb_face);

        hb_buffer_t *hb_buffer = hb_buffer_create();
        hb_buffer_add_utf8(hb_buffer, "text", -1, 0, -1);
        hb_buffer_guess_segment_properties(hb_buffer);

        hb_shape_full(hb_font, hb_buffer, NULL, 0, shapers);

        hb_buffer_destroy(hb_buffer);
        hb_font_destroy(hb_font);
        hb_face_destroy(hb_face);
    }
    hb_blob_destroy(hb_blob);
    free(font);

    return 0;
}