Relationship problem: Maximum call stack size exceeded

[jonasbark]

The following problem happens when I want to load this swagger file in start.ktor.io (Version 1.2.2):
swagger (1).json.zip

RangeError: Maximum call stack size exceeded
    at isInheritanceFromInterface (kotlin.js:1110)
    at isInheritanceFromInterface (kotlin.js:1117)
    at isInheritanceFromInterface (kotlin.js:1117)
    at isInheritanceFromInterface (kotlin.js:1117)
    at isInheritanceFromInterface (kotlin.js:1117)
    at isInheritanceFromInterface (kotlin.js:1117)
    at Object.Kotlin.isType (kotlin.js:1156)
    at toList_8 (kotlin.js:15838)
    at DynamicAccess.get_keys_mzud1t$ (ktor-generator.js:17168)
    at DynamicAccess.get_strKeys_mzud1t$ (ktor-generator.js:17186)

After debugging quite a while it seems to happen when two models have relationships that point to each other. Simplified kotlin form:

data class Model(val otherModel: OtherModel) 
data class OtherModel(val model: Model)