Snowflake STAGE does not DROP

[so-tomoshira]

I am using this plugin in daily, and when I checked Snowflake, I found that the STAGE created by this plugin is not DROPed, as shown in the screenshot below.

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I am unsure about the following code.

embulk-output-snowflake/src/main/java/org/embulk/output/SnowflakeOutputPlugin.java

Line 123 in 77b1e56

if (t.getDeleteStage()) {

I don't get how this if statement can be true.