kalender und fixes

src/CalDavClient.php

@@ -190,7 +190,8 @@ class CalDavClient
         $block = $m[1];
 
         $get = function ($prop) use ($block) {
-            if (preg_match('/^' . preg_quote($prop, '/') . '[^:]*:(.+)$/m', $block, $m)) return trim($m[1]);
+            // Match property value: everything after "PROP...:" until the next property or end
+            if (preg_match('/^' . preg_quote($prop, '/') . '[^:]*:([\s\S]*?)(?=\n[A-Z][-A-Z]*[;:]|\z)/m', $block, $m)) return trim($m[1]);
             return null;
         };