Boolean parameters "required but unset" if set to false

[imagejan]

When using a (script) parameter that was not persisted (yet), like:

#@ Boolean somethingNeverPersisted
println somethingNeverPersisted

or

#@ Boolean (persist=false) somethingNeverPersisted
println somethingNeverPersisted

... and leaving the checkbox unchecked, you get the error message:

'somethingNeverPersisted' is required but unset

... making it impossible to input false.

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The workaround is to always provide a default value:

#@ Boolean (value=false) somethingNeverPersisted
println somethingNeverPersisted