Implementation of DataConvertible for Bool is incorrect

[regexident]

The way DataConvertible is implemented for Bool in SwiftLMDB right now is this:

extension Bool: DataConvertible {}

which then effectively ends up implementing this for each:

public extension DataConvertible {

    init?(data: Data) {
        guard data.count == MemoryLayout<Self>.size else { return nil }
        self = data.withUnsafeBytes { $0.pointee }
    }
    
    var data: Data {
        var value = self
        return Data(buffer: UnsafeBufferPointer(start: &value, count: 1))
    }
}

This is incorrect as the bitwise representation of Bool is an implementation detail and thus subject to change at will between language versions, breaking your persisted database.

What you should do instead is this:

extension Bool: DataConvertible {
    
    public init?(data: Data) {
        guard data.count == MemoryLayout<UInt8>.size else { return nil }
        self = data.withUnsafeBytes { $0.pointee } != 0
    }

    public var data: Data {
        var value: UInt8 = self ? 1 : 0
        return Data(buffer: UnsafeBufferPointer(start: &value, count: 1))
    }
}

[regexident]

Fixed by fe227c5.