620 bug redundant attendees in the invitation list (#629)

Co-authored-by: Camille Moussu <cmoussu@linagora.com>

src/components/Attendees/PeopleSearch.tsx

@@ -297,11 +297,16 @@ export function PeopleSearch({
             return;
           }
           setInputError(null);
-          const mapped = value.map((v: string | User) =>
-            typeof v === "string"
-              ? { email: v.trim(), displayName: v.trim() }
-              : v
-          );
+          const mapped = value
+            .map((v: string | User) =>
+              typeof v === "string"
+                ? { email: v.trim(), displayName: v.trim() }
+                : v
+            )
+            .filter(
+              (user, index, self) =>
+                self.findIndex((u) => u.email === user.email) === index
+            );
           onChange(event, mapped);
         }}
         slotProps={{

src/features/Events/eventUtils.ts

@@ -110,16 +110,23 @@ export function parseCalendarEvent(
       }
       case "attendee": {
         const paramsObj = params as Record<string, string>;
-        (event.attendee as userAttendee[]).push(
-          createAttendee({
-            cn: paramsObj?.cn,
-            cal_address: String(value).replace(/^mailto:/i, ""),
-            partstat: paramsObj?.partstat as userAttendee["partstat"],
-            rsvp: paramsObj?.rsvp as userAttendee["rsvp"],
-            role: paramsObj?.role as userAttendee["role"],
-            cutype: paramsObj?.cutype as userAttendee["cutype"],
-          })
-        );
+        if (
+          !event.attendee?.find(
+            (attendee) =>
+              attendee.cal_address === String(value).replace(/^mailto:/i, "")
+          )
+        ) {
+          (event.attendee as userAttendee[]).push(
+            createAttendee({
+              cn: paramsObj?.cn,
+              cal_address: String(value).replace(/^mailto:/i, ""),
+              partstat: paramsObj?.partstat as userAttendee["partstat"],
+              rsvp: paramsObj?.rsvp as userAttendee["rsvp"],
+              role: paramsObj?.role as userAttendee["role"],
+              cutype: paramsObj?.cutype as userAttendee["cutype"],
+            })
+          );
+        }
         break;
       }
       case "dtstamp":