Missing Glossary Element für [language] leads to Exceptions

[keinvorbild]

Issue started with migration to typo3 8 and produced an empty-array-exception when viewing english pages. THe issue was fixed by adding a single Dummy glossary Element in english.
Up to date the glossary was and is not used on the few english pages. I am not sure why this is happening, but i guess it should not be this way.

Reproducable: yes
Wanted behaviour: No exception on [language] pages, even if no Glossary Elements of [language] exist.

[rnakielski]

the same happens when there was no storage set in the constants. Array was not initialized in frontend Hook.

/**
   * function that does the DB calls to fetch all glossary entries
   *
   * @param string $pidList idlists set by configuraion
   * @return array glossary items
   */
  protected function fetchGlossaryItems($pidList): array
  {

When there was no storage Found (or for other reasons) the function returns null and not an array.

[sypets]

The array $items did not get initialized in the fetchGlossaryItems() function in the release version (from TER).

It looks like this problem is already fixed in the latest version here in "master" branch.