added guest

 	/**

--- ./apps/dav/lib/CalDAV/Schedule/IMipPlugin.php	2022-07-27 13:21:50.294113800 +0530

+++ ./apps/dav/lib/CalDAV/Schedule/IMipPlugin-newModified.php	2022-07-27 13:52:13.154113800 +0530

+++ ./apps/dav/lib/CalDAV/Schedule/IMipPlugin-newModified.php	2022-07-28 11:43:03.254435200 +0530

@@ -151,15 +151,6 @@

 	 */

 	public function schedule(Message $iTipMessage) {

 		}

 	}

@@ -659,7 +739,7 @@

 										Message $iTipMessage, $lastOccurrence) {

 		$token = $this->createInvitationToken($iTipMessage, $lastOccurrence);

-		$template->addBodyButtonGroupTentative(

+		$template->addBodyButtonGroup(

 			$l10n->t('Accept'),

 			$this->urlGenerator->linkToRouteAbsolute('dav.invitation_response.accept', [

 				'token' => $token,

@@ -667,11 +747,18 @@

 			$l10n->t('Decline'),

 			$this->urlGenerator->linkToRouteAbsolute('dav.invitation_response.decline', [

 				'token' => $token,

-			]),

-			$l10n->t('Maybe'),

-			$this->urlGenerator->getAbsoluteUrl('apps/calendar/invitation/tentative/'.$token)

+			])

@@ -671,7 +751,6 @@

 			$l10n->t('Maybe'),

 			$this->urlGenerator->getAbsoluteUrl('apps/calendar/invitation/tentative/'.$token)

 		);

+		$moreOptionsURL = $this->urlGenerator->linkToRouteAbsolute('dav.invitation_response.options', [

+			'token' => $token,

+		]);

+		$html = vsprintf('<small><a href="%s">%s</a></small>', [

+			$moreOptionsURL, $l10n->t('More options …')

+		]);

+		$text = $l10n->t('More options at %s', [$moreOptionsURL]);

+

+		$template->addBodyText($html, $text);

-

 	}

 	/**

@@ -716,4 +803,4 @@

@@ -716,4 +795,4 @@

 		return $token;

 	}