SIGMET invalid geometry

[globin]

Not all SIGMET geometries coordinates are polygons:

sqlalchemy.exc.InternalError: (sqlalchemy.dialects.postgresql.asyncpg.InternalServerError) <class 'asyncpg.exceptions.InternalServerError'>: geometry requires more points
HINT:  "...4 59.8,26.267 59.25,25.4 59.8))" <-- parse error at position 57 within geometry
[SQL: INSERT INTO sigmet ("isigmetId", "icaoId", "firId", "receiptTime", "validTimeFrom", "validTimeTo", "seriesId", hazard, qualifier, base, top, geom, dir, spd, chng, coords, "rawSigmet") VALUES ($1::INTEGER, $2::VARCHAR, $3::VARCHAR, $4::TIMESTAMP WITH TIME ZONE, $5::TIMESTAMP WITH TIME ZONE, $6::TIMESTAMP WITH TIME ZONE, $7::VARCHAR, $8::VARCHAR, $9::VARCHAR, $10::INTEGER, $11::INTEGER, $12::VARCHAR, $13::VARCHAR, $14::INTEGER, $15::VARCHAR, ST_GeomFromEWKT($16), $17::VARCHAR)]
[parameters: (781112, 'EETN', 'EETT', datetime.datetime(2024, 8, 5, 7, 45, 52, tzinfo=datetime.timezone.utc), datetime.datetime(2024, 8, 5, 8, 0, tzinfo=TzInfo(UTC)), datetime.datetime(2024, 8, 5, 12, 0, tzinfo=TzInfo(UTC)), 'T01', 'TS', 'FRQ', None, 33000, 'AREA', 'SSW', 5, 'NC', 'SRID=-1;POLYGON((25.4 59.8,26.267 59.25,25.4 59.8))', 'WSEO31 EETN 050745\nEETT SIGMET T01 VALID 050800/051200 EEMH-\nEETT TALLINN FIR FRQ TS FCST WI N5948 E02524 - N58937 E02700 - N5915\nE02616 - N5948 E02524 TOP FL330 MOV SSW 5KT NC=')]