Fix/null safe rail tunnel bridge#60
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Apr 30, 2026
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The PR #59 fixed filters using the pattern
["!=", ["get", "tunnel"], 1]→["!=", ["coalesce", ["get", "tunnel"], 0], 1], but missed the inverse pattern["==", ["get", "tunnel"], 0](and the equivalent forbridge), which is used by rail layers and a couple of construction layers.Since vector tiles omit the
tunnel/bridgeproperty when its value is0, the strict equality== 0evaluates tofalseagainstnulland the layers stop rendering. As a result, only bridge rails were visible on the map.