missing validation: reused variables #90
Description
Reusing the same variable in a single action or in a single command will produce an invalid Dragonfly export.
For now, should add validators to prevent this.
Eventually, this might be able to be allowed, but the export process would have to be changed to accommodate it. One way to do this might be to clone such reused variables at export time, so that variable references are unique as far as Dragonfly is concerned.