[GSWBTH-15] Displays source and legend also if no layer for requested hazardlevel available

GFDRR / thinkhazard

ThinkHazard!

http://thinkhazard.org/

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[GSWBTH-15] Displays source and legend also if no layer for requested hazardlevel available #904

Closed tkohr closed 4 years ago

tkohr commented 4 years ago

PR requests source and legend of first available layer if no layer for requested hazardlevel is available which usually happens for hazardlevel VLO / hazardlevel_id 4