diff --git a/htdocs/comm/propal/class/propal.class.php b/htdocs/comm/propal/class/propal.class.php
index 32f7749190a..c96d0d1389a 100644
--- a/htdocs/comm/propal/class/propal.class.php
+++ b/htdocs/comm/propal/class/propal.class.php
@@ -2129,7 +2129,6 @@ class Propal extends CommonObject
 
 			$this->ref = $num;
 			$this->statut = self::STATUS_VALIDATED;
-			$this->status = self::STATUS_VALIDATED;
 			$this->user_validation_id = $user->id;
 			$this->datev = $now;
 			$this->date_validation = $now;
diff --git a/htdocs/core/class/commoninvoice.class.php b/htdocs/core/class/commoninvoice.class.php
index 828d5192eab..b4c6346a18e 100644
--- a/htdocs/core/class/commoninvoice.class.php
+++ b/htdocs/core/class/commoninvoice.class.php
@@ -1819,6 +1819,9 @@ abstract class CommonInvoice extends CommonObject
 		// Get the amount to pay
 		$amount_to_pay = $this->getRemainToPay();
 
+		// Prevent negative values (e.g. overpayments)
+		$amount_to_pay = max(0, $amount_to_pay);
+
 		// Ensure numeric formatting for EPC QR code
 		$amount_to_pay = price2num($amount_to_pay, 'MT');
 
diff --git a/htdocs/core/class/html.formsetup.class.php b/htdocs/core/class/html.formsetup.class.php
index 8eb90fe329b..efedd7be7ab 100644
--- a/htdocs/core/class/html.formsetup.class.php
+++ b/htdocs/core/class/html.formsetup.class.php
@@ -267,7 +267,6 @@ class FormSetup
 			$this->errors = $hookmanager->errors;
 			return -1;
 		}
-
 		if ($reshook > 0) {
 			return $reshook;
 		}
diff --git a/htdocs/core/triggers/interface_50_modTicket_TicketEmail.class.php b/htdocs/core/triggers/interface_50_modTicket_TicketEmail.class.php
index 39cee230d3e..5a10de98ed8 100644
--- a/htdocs/core/triggers/interface_50_modTicket_TicketEmail.class.php
+++ b/htdocs/core/triggers/interface_50_modTicket_TicketEmail.class.php
@@ -445,7 +445,7 @@ class InterfaceTicketEmail extends DolibarrTriggers
 		$message_customer .= '<p>'.$langs->trans('Message').' : <br><br>'.$message.'</p><br>';
 
 		if (getDolGlobalInt('TICKET_ENABLE_PUBLIC_INTERFACE')) {
-			$url_public_ticket = getDolGlobalString('TICKET_URL_PUBLIC_INTERFACE', dol_buildpath('/public/ticket/', 2)).'view.php?track_id='.((int) $object->track_id);
+			$url_public_ticket = getDolGlobalString('TICKET_URL_PUBLIC_INTERFACE', dol_buildpath('/public/ticket/', 2)).'view.php?track_id='.urlencode($object->track_id);
 			$message_customer .= '<p>'.$langs->trans($see_ticket).' : <a href="'.$url_public_ticket.'">'.$url_public_ticket.'</a></p>';
 			$message_customer .= '<p>'.$langs->trans('TicketEmailPleaseDoNotReplyToThisEmail').'</p>';
 		} else {