navigating to DE from bucket selection doesn't overwrite script editor state of DE.

[ebb-tide]

if DE state was previously in "query builder" mode then clicking on bucket name from buckets tab takes user to DE with bucket selected in query builder'

if DE state was previously in "script editor" mode then clicking on bucket name from buckets tab takes user to DE ... but retains the last script written by user. should probably have the same behavior as above instead.