Set `mtime` to null instead of false if `getlastmodified` does not exist.

Signed-off-by: Max Kunzelmann <maxdev@posteo.de>

diff --git a/lib/private/Files/Storage/DAV.php b/lib/private/Files/Storage/DAV.php
index bd818bf33a221725d6f53f701daa29c7369ecd7e..568262d981714ffc9ec1dfc9bcb77d31ca3fe3c6 100644 (file)
--- a/lib/private/Files/Storage/DAV.php
+++ b/lib/private/Files/Storage/DAV.php
@@ -587,7 +587,7 @@ class DAV extends Common {
                                return false;
                        }
                        return [
-                               'mtime' => isset($response['{DAV:}getlastmodified']) ? strtotime($response['{DAV:}getlastmodified']) : false,
+                               'mtime' => isset($response['{DAV:}getlastmodified']) ? strtotime($response['{DAV:}getlastmodified']) : null,
                                'size' => (int)isset($response['{DAV:}getcontentlength']) ? $response['{DAV:}getcontentlength'] : 0,
                        ];
                } catch (\Exception $e) {