Exclude current user principal from sharees

app/src/androidTest/java/org/tasks/caldav/SharingSabredavTest.kt

@@ -130,6 +130,7 @@ class SharingSabredavTest : CaldavTest() {
                             <d:resourcetype>
                                 <d:collection />
                                 <cal:calendar />
+                                <cs:shared-owner />
                             </d:resourcetype>
                             <d:displayname>Shared</d:displayname>
                             <cal:supported-calendar-component-set>
@@ -141,6 +142,14 @@ class SharingSabredavTest : CaldavTest() {
                                 <d:shared-owner />
                             </d:share-access>
                             <d:invite>
+                                <d:sharee>
+                                    <d:href>/principals/user1</d:href>
+                                    <d:prop />
+                                    <d:share-access>
+                                        <d:shared-owner />
+                                    </d:share-access>
+                                    <d:invite-accepted />
+                                </d:sharee>
                                 <d:sharee>
                                     <d:href>mailto:user@example.com</d:href>
                                     <d:prop>

app/src/main/java/org/tasks/caldav/CaldavSynchronizer.kt

@@ -357,16 +357,17 @@ class CaldavSynchronizer @Inject constructor(
         }
 
         val Response.isOwncloudOwner: Boolean
-            get() = this[OCOwnerPrincipal::class.java]?.owner
-                ?.let {
-                    this[CurrentUserPrincipal::class.java]?.href?.endsWith("$it/") == true
-                }
-                ?: false
+            get() = this[OCOwnerPrincipal::class.java]?.owner?.let { isCurrentUser(it) } ?: false
+
+        fun Response.isCurrentUser(href: String) =
+            this[CurrentUserPrincipal::class.java]?.href?.endsWith("$href/") == true
 
         val Response.principals: List<Principal>
             get() {
                 val principals = ArrayList<Principal>()
-                this[Invite::class.java]?.sharees
+                this[Invite::class.java]
+                    ?.sharees
+                    ?.filterNot { isCurrentUser(it.href) }
                     ?.map {
                         Principal().apply {
                             principal = it.href