Allow other sources for Cucumber Feature name beside requirement issue summary

Background:
Created as a question on Atlassian Answers:
https://answers.atlassian.com/questions/61422024/xray-feature-name-blank-in-exported-cucumber-.feature-files

Use case:
In the answer there is stated, that the name for an exported Cucumber Feature is taken from the summary of the requirement, that is linked (by 'tested by/tests') with the exported test. In cases, where there is no requirement linked with the test, exported Feature has no name.

Example:

@QAKP_130
Feature:

#Der Test prüft Verhalten beim Eingabe fehlerhaften Daten.
@QAKP_128 @QAKP_129
Scenario Outline: Login is not possible
(...)

Request:
In case there is no requirement issue linked with a test or test set an alternative name is created. The alternatives could be the test or test set summary.