Fixes BUD 10 tests

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nipB7Blossom/BlossomUri.kt

@@ -55,7 +55,7 @@ data class BlossomUri(
                 buildList {
                     servers.forEach { add("xs=${percentEncodeQueryValue(it)}") }
                     authors.forEach { add("as=$it") }
-                    size?.let { add("sz=$it") }
+                    this@BlossomUri.size?.let { add("sz=$it") }
                 }
             if (params.isNotEmpty()) {
                 append('?')

quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nipB7Blossom/BlossomUriTest.kt

@@ -131,4 +131,24 @@ class BlossomUriTest {
         assertNotNull(result)
         assertEquals(listOf(authorPubkey, author2), result.authors)
     }
+
+    @Test
+    fun handlesMultipleAuthorsMultipleServers() {
+        val author1 = "781208004e09102d7da3b7345e64fd193cd1bc3fce8fdae6008d77f9cabcd036"
+        val author2 = "b53185b9f27962ebdf76b8a9b0a84cd8b27f9f3d4abd59f715788a3bf9e7f75e"
+        val server1 = "cdn.example.com"
+        val server2 = "media.nostr.build"
+        val fileHex = "a7b3c2d1e4f5a6b7c8d9e0f1a2b3c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f9a0b1"
+        val fileExt = "png"
+        val size = 2547831L
+        val uri = "blossom:$fileHex.$fileExt?xs=$server1&xs=$server2&as=$author1&as=$author2&sz=$size"
+        val result = BlossomUri.parse(uri)
+
+        assertNotNull(result)
+        assertEquals(fileHex, result.sha256)
+        assertEquals(fileExt, result.extension)
+        assertEquals(listOf(author1, author2), result.authors)
+        assertEquals(listOf(server1, server2), result.servers)
+        assertEquals(size, result.size)
+    }
 }