[BUG] System.IndexOutOfRangeException in GetCollectionIndexesSlots()

[mikhail-khalizev]

Version
5.0.8

Describe the bug
I started getting the IndexOutOfRangeException exception when updating a document in the database.

Code to Reproduce

[Fact]
public void MyTest()
{
    var cs = new ConnectionString();
    cs.Connection = ConnectionType.Direct;
    cs.Upgrade = true;
    cs.Filename = Directory.GetCurrentDirectory() + "\\..\\..\\..\\app.db";
    var App = new LiteDatabase(cs);
    App.Timeout = TimeSpan.FromSeconds(10);
    App.UtcDate = true;

    var Devices = App.GetCollection("devices");
    // Devices.EnsureIndex("device_chip_id", x => x.SystemInfo["cpu"]["id"], true);
    // Devices.EnsureIndex(x => x.Thumbprint, true);
    // Devices.EnsureIndex(x => x.Order);

    var doc = (BsonDocument)JsonSerializer.Deserialize("{\"_id\":144479156,\"Order\":0,\"SystemInfo\":{\"time\":{\"$date\":\"2020-05-30T16:39:51.7730000Z\"},\"lastTimeUpdate\":{\"$date\":\"2020-05-30T15:47:39.0850000Z\"},\"timezone\":180,\"name\":\"awatem-autowatering-0-proto\",\"version\":\"v11-26-g8fa387b-dirty\",\"cpu\":{\"package\":\"ESP32-D0WDQ5\",\"revision\":1,\"cores\":2,\"freq\":240000000,\"id\":\"84-0d-8e-ec-f8-a4\",\"timeSinceBoot\":{\"$date\":\"1970-01-01T00:03:51.8440000Z\"},\"resetReason\":\"RstWdt\",\"ram\":{\"dram\":{\"total\":278100,\"allocated\":160788,\"free\":117312,\"freeMinimum\":109028,\"largestFreeBlock\":113792,\"reserved\":{\"data\":16076,\"bss\":32144}},\"iram\":{\"total\":48740,\"allocated\":28924,\"free\":19816,\"reserved\":114855},\"external\":{\"total\":4175620,\"allocated\":111968,\"free\":4063652,\"freeMinimum\":3879356,\"largestFreeBlock\":4055952}},\"flash\":{\"id\":13123608,\"size\":16777216,\"sectorSize\":4096,\"speed\":80000000,\"mode\":\"qio\"}},\"partitions\":[{\"label\":\"factory\",\"type\":\"App\",\"subtype\":\"Factory\",\"boot\":true,\"running\":true,\"size\":4194304,\"app\":{\"name\":\"awatem-autowatering-0-proto\",\"version\":\"v11-26-g8fa387b-dirty\",\"buildTime\":\"2020-05-29T23:13:29Z\",\"idfVersion\":\"v4.0.1-dirty\",\"size\":3204720}},{\"label\":\"ota_0\",\"type\":\"App\",\"subtype\":\"Ota0\",\"forNextUpdate\":true,\"size\":4194304},{\"label\":\"ota_1\",\"type\":\"App\",\"subtype\":\"Ota1\",\"size\":4194304},{\"label\":\"fs\",\"type\":\"Data\",\"subtype\":\"Any\",\"size\":4063232,\"filesystem\":{\"size\":4063232,\"free\":3637248}}],\"wifi\":{\"sta\":{\"ssid\":\"Micky53-v2\",\"bssid\":\"28-c6-8e-3c-b0-10\",\"channel\":11,\"bandwidth\":\"HT40\",\"rssi\":-56,\"auth\":\"Wpa2Psk\",\"phy\":\"b/g/n\",\"ip\":\"192.168.1.7\",\"netmask\":\"255.255.255.0\",\"gateway\":\"192.168.1.1\",\"mac\":\"84-0d-8e-ec-f8-a4\"}}},\"Configuration\":{\"version\":24,\"script\":{\"file\":\"script/main.js\"},\"wifi\":{\"networks\":[{\"ssid\":\"Micky53-v2\",\"password\":\"*************\"}]},\"device\":{\"soil\":{\"1\":{\"moisture\":{\"type\":\"auto\",\"percent0\":1416,\"percent100\":1428}},\"2\":{\"moisture\":{\"type\":\"auto\",\"percent0\":1370,\"percent100\":1502}}}},\"timezone\":180,\"lastTimeUpdate\":\"2020-05-30T15:47:39.085986Z\"},\"Thumbprint\":\"1F6D2AA1F5898D8978BC8F7A3AAAE19A9E9DEB94\"}}");
    
    Devices.Update(doc); // Throw IndexOutOfRangeException.
}

app.db.zip

Expected behavior
No exception throw.

[lbnascimento]

@mikhail-khalizev This issue has been fixed in master and its fix will be present in the next incremental release.