Detect cyclic parent references

src/main/kotlin/ru/dbotthepony/mc/otm/client/screen/panels/EditablePanel.kt

@@ -3,6 +3,7 @@ package ru.dbotthepony.mc.otm.client.screen.panels
 import com.google.common.collect.ImmutableList
 import com.mojang.blaze3d.systems.RenderSystem
 import com.mojang.blaze3d.vertex.PoseStack
+import it.unimi.dsi.fastutil.objects.ObjectArraySet
 import net.minecraft.client.gui.Font
 import net.minecraft.client.gui.components.events.GuiEventListener
 import net.minecraft.client.gui.screens.Screen
@@ -71,6 +72,18 @@ open class EditablePanel<out S : Screen> @JvmOverloads constructor(
 			if (field === value)
 				return
 
+			val set = ObjectArraySet<EditablePanel<*>>()
+			set.add(this)
+			var parent = value
+
+			while (parent != null) {
+				if (set.add(parent)) {
+					parent = parent.parent
+				} else {
+					throw IllegalStateException("Cyclic parent reference detected: ${set.joinToString(", ") { "$it<${it::class.qualifiedName}>" }}")
+				}
+			}
+
 			field?.onUnParent(this)
 			field = value
 			layoutInvalidated = true