Pebble text_layer_get_content_size bug

#include <pebble.h>

Window* window;
TextLayer* text;

int main(void) {
    window = window_create();
    Layer* topLayer = window_get_root_layer(window);

    text = text_layer_create(GRect(10, 10, 100, 100));
    text_layer_set_font(text, fonts_get_system_font(FONT_KEY_GOTHIC_24));
    text_layer_set_overflow_mode(text, GTextOverflowModeWordWrap);
    layer_add_child(topLayer, (Layer*) text);

    //Test 1: add one letter

    text_layer_set_text(text, "");
    app_log(0, "main.c", 14, "%d %d", text_layer_get_content_size(text).w, text_layer_get_content_size(text).h); //Outputs "0 0" (as expected)

    text_layer_set_text(text, "A");
    app_log(0, "main.c", 14, "%d %d", text_layer_get_content_size(text).w, text_layer_get_content_size(text).h); //Outputs "0 0" (?? - Did not update?)

    //Test 2: add two letters

    text_layer_set_text(text, "");
    app_log(0, "main.c", 14, "%d %d", text_layer_get_content_size(text).w, text_layer_get_content_size(text).h); //Outputs "0 0" (as expected)

    text_layer_set_text(text, "AA");
    app_log(0, "main.c", 14, "%d %d", text_layer_get_content_size(text).w, text_layer_get_content_size(text).h); //Outputs "16 24" (as expected)

    window_stack_push(window, true);

    app_event_loop();
    return 0;
}