orange should not distungush between string and ftext

[jnidzwetzki]

# Works: Ordered relation with string attribute - string in orange
query plz feed oconsume[Ort] orange["A";"B"] head[1] consume

# Type Error: Ordered relation with string attribute - text in orange
query plz feed oconsume[Ort] orange['A';'B'] head[1] consume

# Type Error: Ordered relation with text attribute - string in orange - type error
query plz feed extend[Ort_Text: totext(.Ort)] oconsume[Ort_Text] orange["A";"B"] head[1] consume

# Works: Ordered relation with text attribute - text in orange
query plz feed extend[Ort_Text: totext(.Ort)] oconsume[Ort_Text] orange['A';'B'] head[1] consume