[Dovecot] Seq-range order in sequence-set are matter?

Hi!

I have a mailbox with 12 messages. Theese two commands:

x fetch 5,8:12 (UID)

• 5 FETCH (UID 10)
• 8 FETCH (UID 13)
• 9 FETCH (UID 14)
• 10 FETCH (UID 15)
• 11 FETCH (UID 16)
• 12 FETCH (UID 17) x OK Fetch completed.

and

x fetch 8:12,5 (UID)

• 5 FETCH (UID 10)
• 8 FETCH (UID 13)
• 9 FETCH (UID 14)
• 10 FETCH (UID 15)
• 11 FETCH (UID 16)
• 12 FETCH (UID 17) x OK Fetch completed.

outputs are equeal, this clean. But:

x fetch 1:*,5 (UID)

• 1 FETCH (UID 4)
• 2 FETCH (UID 5)
• 3 FETCH (UID 6)
• 4 FETCH (UID 7)
• 5 FETCH (UID 10)
• 6 FETCH (UID 11)
• 7 FETCH (UID 12)
• 8 FETCH (UID 13)
• 9 FETCH (UID 14)
• 10 FETCH (UID 15)
• 11 FETCH (UID 16)
• 12 FETCH (UID 17) x OK Fetch completed.

and

x fetch 5,1:* (UID)

• 5 FETCH (UID 10)
• 6 FETCH (UID 11)
• 7 FETCH (UID 12)
• 8 FETCH (UID 13)
• 9 FETCH (UID 14)
• 10 FETCH (UID 15)
• 11 FETCH (UID 16)
• 12 FETCH (UID 17) x OK Fetch completed.

command outputs are NOT equal? Why?

Thank you!

Lay