Fix NULL pointer exception in some circumstances from Calendar's homepage
After importing specific weird events, for example from Google Calendar (bleah), it can happen that the Calendar's homepage becomes broken.
This was the Exception error shown to video:
"Call to a member function getEventsBetween() on null"
It was happening since this method can return NULL:
This changeset verifies this condition from the Calendar's homepage.
Test Plan: I tried in my server. I've executed the syntax lint. On my local machine I was not able to run "arc diff" since it tries to connect to root@localhost for some reasons.
Reviewers: O1 Blessed Committers, 20after4
Reviewed By: O1 Blessed Committers, 20after4
Subscribers: 0, Cigaryno, 20after4, speck, tobiaswiese, Matthew
Maniphest Tasks: T15136
Differential Revision: https://we.phorge.it/D25060