Inconsistent base class injection behavior

while migrating from 4.x to 6.4 I found that injecting base classes does not work as it used to and depending how injection occurs, it’s also inconsistent.

what is the preferred way to handle / resolve class hierarchy instances as outlined below for 6.x?

class KodeinSandbox {
    open class Resource1
    open class Resource2 : Resource1()

    val kodein = Kodein {
        bind<Resource1>() with singleton { Resource1() }
        bind<Resource2>() with singleton { Resource2() }
    }

    val instanceLevelResource1: Resource1 by kodein.instance()

    @Test
    fun testInjection() {
        val localResource1: Resource1 by kodein.instance()

        // Behaves as expected (as of 4.x) delivers instance explicitly bound to base-class type
        println(localResource1)

        // Throws due to ambiguity
        println(instanceLevelResource1)
    }
}

[masc3d]

confirming, 6.4.1 fixes this, as well as the overriding issue I presumed was related.

[romainbsl]

6.4.1 fix the bug, I hope this will help. Tell me if you still have issues. (publishing on jcenter may take some minutes)