When a Search button is selected in a Chorus Search form, immediately make Enabled property = False

[Liam_Doherty]

We have discovered if a user-initiated Chorus work object search is taking some time to return results, the user might again select the Search button resulting in further lookup request being initiated. 

Because multiple long-running lookups can then eat up a lot of system resources it has resulted in wider performance/stability issues for other users, impacting the business and reputation of the system. 

Although a spinning wheel is displayed the Search button control does not get disabled upon being selected, which would stop this issue from arising. 

Please could this be considered for a future enhancement request?  Many thanks.

(See INC1402966 for additional context.)