#978 correct image upload handling, get rid of side effects

modules/base/general/classes/BxBaseModGeneralFormEntry.php

@@ -114,8 +114,8 @@ class BxBaseModGeneralFormEntry extends BxTemplFormView
 
         if (isset($CNF['FIELD_CHANGED']) && empty($aValsToAdd[$CNF['FIELD_CHANGED']]) && empty($this->getCleanValue($CNF['FIELD_CHANGED'])))
             $aValsToAdd[$CNF['FIELD_CHANGED']] = time();
-        
-        if (CHECK_ACTION_RESULT_ALLOWED === $this->_oModule->checkAllowedSetThumb($iContentId) && isset($CNF['FIELD_THUMB'])) {
+
+        if (CHECK_ACTION_RESULT_ALLOWED === $this->_oModule->checkAllowedSetThumb($iContentId) && isset($CNF['FIELD_THUMB']) && isset($CNF['FIELD_PHOTO']) && isset($this->aInputs[$CNF['FIELD_PHOTO']])) {
             $aThumb = bx_process_input (bx_get($CNF['FIELD_THUMB']), BX_DATA_INT);
             $aValsToAdd[$CNF['FIELD_THUMB']] = 0;
             if (!empty($aThumb) && is_array($aThumb) && ($iFileThumb = array_pop($aThumb)))