Fixing the issue in resetting the password for the email user - https://github.com/wso2/product-iots/issues/609.

components/device-mgt/org.wso2.carbon.device.mgt.ui/src/main/resources/jaggeryapps/devicemgt/app/pages/cdmf.page.users/public/js/listing.js

@@ -157,7 +157,7 @@ function resetPassword(username) {
                 domain = username.substr(0, username.indexOf('/'));
                 username = username.substr(username.indexOf('/') + 1);
             }
-            var resetPasswordServiceURL = apiBasePath + "/admin/users/" + username + "/credentials";
+            var resetPasswordServiceURL = apiBasePath + "/admin/users/" + encodeURIComponent(username) + "/credentials";
             if (domain) {
                 resetPasswordServiceURL += '?domain=' + encodeURIComponent(domain);
             }