[JIRAALIGN-1437] Filtering by OWNER, in Roadmaps page, throws exception when retrieving list of users

Issue Summary

Filtering by Owner, in Roadmaps page, throws exception when retrieving list of users

Steps to Reproduce

1. Browse to Roadmaps page
2. At tier1 filter, select one (or more) portfolio with capabilities and all available PIs (selecting high volume of data is a must)
3. Set roadmap options to Work / Capabilities / Date / Month by quarter
4. Launch DevTools
5. Click Filter button
6. Select Owner in the combo box, then click the + (plus) sign
7. Type a search string in the corresponding field

Expected Results

• A list of names corresponding to the typed string should show up

Actual Results

1. Notice the loading icon rolling indefinitely
2. Notice the Error 500 at DevTools/Network & Console

The below Error 500 is thrown in DevTools:

GET https://instance.agilecraft.com:443/RestV1/User.asp?TypeVal=list 500

The below exception is thrown in Splunk:

{ [-]
   ASP_function: Error.asp
   ErrorId: 672
   PageName: Capabilities
   correlationid: tPZ26c3IxazeA8+iOy/PMYLpiEzVtsvRS5w1Ua2Xh+k=
   customer_db: AlignSupport
   error_aspcode: ASP 0251
   error_aspdescription: Execution of the ASP page caused the Response Buffer to exceed its configured limit.
   error_category: Response object
   error_column: -1
   error_description: Response Buffer Limit Exceeded
   error_file: /RestV1/User.asp
   error_line: 0
   error_number: -2147467259
   error_source:
   log_type: exception
   logfrom_location: Website-ASP
   timestamp: 2020-04-29T16:38:44.372000-04:00
   url: https://instance.agilecraft.com:443/RestV1/User.asp?TypeVal=list
   urlverb: GET
   user: 661683
   version: 10.71.0.4505
}

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available.