private void ensureCustomAttributesIsMutable() {
            if ((bitField0_ & 0x00001000) == 0) {
                customAttributes_ = new java.util.ArrayList<>(customAttributes_);
                bitField0_ |= 0x00001000;
            }
        }
<code>repeated .im.turms.proto.MessageReactionGroup reaction_groups = 12;</code>
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/model/message/Message.java