Hitting enter when searching for a user or deployment causes filtering to be reset

Issue Summary

Hitting enter when searching for a user causes filtering to be reset. Essentially the below URL does not actually filter the list:

$BAMBOO_URL/admin/user/viewUsers.action?filter=usertosearch

It also affects the deployments dashboard at:

$BAMBOO_URL/deploy/viewAllDeploymentProjects.action?filter=a

Steps to Reproduce

1. Bamboo Administration >> User Management >> Users or Deploy >> All deployment projects
2. Type in a user or deployment to search, it starts filtering correctly
3. Press enter

Expected Results

The page still filters correctly based on what is entered

Actual Results

You'll be taken to $BAMBOO_URL/admin/user/viewUsers.action?filter=usertosearch and it won't be filtered

Workaround

Allow the search to complete by not hitting enter

If you need to perform a user search directly for an automation, use the REST API:
$BAMBOO_BASE_URL/rest/api/latest/admin/users?filter=usertosearch