I Could Almost Cry :(

I went onto the test realm ,worked my pet to an adult, found someone who would mix with me, wait 30 minutes.  And what do I get?  The same pet I used to mix, let me explain...  Summer Dragon+ "Fire Lord"= Summer Dragon.  I could almost cry when someone told me it had to be a Grandmaster pet or a dropped pet.  Can someone confirm or deny this?!?