Fix exception when reading value of field without immutability support
authorMatthias Schmidt <gravatronics@live.com>
Thu, 24 Jan 2019 17:24:07 +0000 (18:24 +0100)
committerMatthias Schmidt <gravatronics@live.com>
Thu, 24 Jan 2019 17:24:07 +0000 (18:24 +0100)
commit91e200064f93a602044d279111567be74b2a365a
tree64bcb693c0ed16e9740257dd41afdc4a2f777a7f
parentb0c411c1f9fea287175d0f86b71d8ac72d6feb8a
Fix exception when reading value of field without immutability support

See #2509
See aa6f853584182980c1c7d12891b689317e458b8b
wcfsetup/install/files/lib/system/form/builder/TFormParentNode.class.php