Backport of #2050

Signed-off-by: tobiasKaminsky <tobias@kaminsky.me>

Author: tobiasKaminsky

library/src/main/java/com/owncloud/android/lib/resources/status/E2EVersion.kt

@@ -1,7 +1,8 @@
 /*
  * Nextcloud Android Library
  *
- * SPDX-FileCopyrightText: 2023-2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-FileCopyrightText: 2023-2026 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-FileCopyrightText: 2026 Alper Ozturk <alper.ozturk@nextcloud.com>
  * SPDX-FileCopyrightText: 2023 Tobias Kaminsky <tobias@kaminsky.me>
  * SPDX-License-Identifier: MIT
  */
@@ -19,10 +20,14 @@ enum class E2EVersion(
 
     val value: String = values.last()
 
+    var unknownValue: String? = null
+
     companion object {
         fun max(): E2EVersion = V2_1
 
         @JvmStatic
-        fun fromValue(v: String?): E2EVersion = entries.find { v in it.values } ?: UNKNOWN
+        fun fromValue(v: String?): E2EVersion =
+            entries.find { v in it.values }
+                ?: UNKNOWN.also { it.unknownValue = v }
     }
 }

library/src/test/java/com/owncloud/android/lib/resources/status/E2EVersionTests.kt

@@ -60,6 +60,13 @@ class E2EVersionTests {
         assertEquals(E2EVersion.UNKNOWN, E2EVersion.fromValue(null))
     }
 
+    @Test
+    fun testFromValueWhenGiven3Dot0ShouldReturnTrue() {
+        val version = E2EVersion.fromValue("3.0")
+        assertEquals(E2EVersion.UNKNOWN, version)
+        assertEquals("3.0", version.unknownValue)
+    }
+
     @Test
     fun testValues() {
         assertEquals(E2EVersion.V1_0.value, "1.0")