Retrieve sequence data from just one geneID and not the identical sequences with blastdbcmd

I'm trying to retrieve the sequence from the gene id in NCBI's nr. If I try doing

blastdbcmd -db nr -entry 1008808716


I get with this result:

>C4TP09.1 RecName: Full=4-hydroxybenzoate 3-monooxygenase (NAD(P)H); AltName: Full=4-hydroxybenzoate 3-hydroxylase; Short=4HB 3-hydroxylase >BAH79107.1 4-hydroxybenzoate 3-hydroxylase [Paenibacillus sp. JJ-1b]
MRTQVGIIGAGPAGLLLSHLLYLQGIESIIIENRTREEIEGTIRAGVLEQGTVDLMNQMGVGARMMKEGHFHEGFELRFN
GRGHRINVHELTGGKYVTVYAQHEVIKDLVAARLQTGGQIHFNVGDVSLHDVDTSSPKIRFRPNKDGELQEIECDFIAGC
DGFRGPSRPAIPQSVRKEYQKVYPFSWLGILVEAPPSAHELIYANHERGFALVSTRSPQIQRLYLQVDAQDHIDNWSDDR
AGKMEILNRCTEICLRRIWKAERFSWFMTTMLHRDQGHTPFERGIQLAELDYVTSSRAASTSLAENYIGLPMEF


My problem is in the sequence data, which come not only from the gene ID I specified, but also from another identical protein. This is more evident if I do

blastdbcmd -db nr -entry 1008808716 -outfmt "%g"


which outputs only the gene ID. I'd expect it to output the same gene ID I input, but instead this is the output:

1008808716
239937278


I'd like to retrieve sequence data exclusively from the gene ID I input. Is that possible? I tried using different flags in -outfmt, but apparently -outfmt %f overrides any other flag I feed the command.