*Participe présent* is needed here.

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The event COMMON_WIKIPAGE_SAVE offers the opportunity to save the content by modifying $data['newContent']. However saveWikiText still saves the original $text variable instead of the possibly modified $svdta['newContent'].

Siehe auch http://www.duden.de/rechtschreibung/wiederherstellen

Fixes an error on PHP 7.1 #1682

if for example the current media file is deleted, the function would return '' instead of the correct LastRevision.

DokuWiki assumes that the server's time is correct. Especially page
revisions and cache handling depend on correct time. If that's not the
case it can lead to problems later (as mentioned in #1644).

This patch adds a very simple time check using the Date response header
from the DokuWiki server to our do=check mechanism.

spelling fix

Using an HTML entitiy might be problematic in non HTML renderers or when
the output is escaped again.