[BG96] GNSS sends undocumented $GAGSA output?

Hi,
My BG96 GNSS output below records (see below)
The $GAGSA output is not documented in Quectel_BG96_GNSS_AT_Commands_Manual_V1.1.pdf.
So I’m wondering why I got these output?
(The firmware version is BG96MAR03A04M1G)

$GAGSV,2,1,06,04,68,274,09,19,234,11,35,326,12,80,075,7*71

$GAGSV,2,2,06,19,39,030,33,30,133,7*76

$GAGSA,A,1,*23

$GAGSV,2,1,06,04,68,274,09,19,234,11,35,326,12,80,075,7*71

$GAGSV,2,2,06,19,39,030,33,30,133,7*76

$GAGSA,A,1,*23

$GAGSV,2,1,06,04,68,274,09,19,234,11,35,326,12,80,075,7*71

$GAGSV,2,2,06,19,39,030,33,30,133,7*76

$GAGSA,A,1,*23

$GAGSV,2,1,06,04,68,274,09,19,234,11,35,326,12,80,075,7*71

$GAGSV,2,2,06,19,39,030,33,30,133,7*76

$GAGSA,A,1,*23

$GAGSV,2,1,06,04,68,274,09,19,234,11,35,326,12,80,075,7*71

$GAGSV,2,2,06,19,39,030,33,30,133,7*76

$GAGSA,A,1,*23

Got $GAGSA output when GSA GLONASS_NMEA_type is enabled.
i.e.

AT+QGPSCFG=“glonassnmeatype”

+QGPSCFG: “glonassnmeatype”,2

or

AT+QGPSCFG=“glonassnmeatype”

+QGPSCFG: “glonassnmeatype”,3

GA is a prefix for Galileo messages, according to NMEA Talker ID list.
But GAGSV that you’ve posted do not conform to NMEA standard. It seems that each visible satellite is reported as three values - satellite ID, elevation, azimuth - while it should contain fourth value - SNR. Otherwise it looks like NMEA 4.11, because it includes Signal ID at the end.

And btw, it is included in the document you mention:
image

I know GAGSV is documented, the point is GAGSA is unexpected.
According to the document it should send GNGSA rather than GAGSA.
(The FAE already confirmed GAGSA is unexpected behavior).