Crash From Using Arrow Key to Scroll in Servers

use arrow key while highlighint server to scroll onto or off of a lan world(section) produces crash

Crash:

---- Minecraft Crash Report ----
// You're mean.

Time: 6/26/18 2:23 AM
Description: keyPressed event handler

java.lang.IndexOutOfBoundsException: Index: 14, Size: 13
	at java.util.ArrayList.rangeCheck(ArrayList.java:653)
	at java.util.ArrayList.get(ArrayList.java:429)
	at ckp$b.a(SourceFile:100)
	at ckp$b.get(SourceFile:95)
	at coo.b(SourceFile:338)
	at coo.keyPressed(SourceFile:286)
	at ciz.a(SourceFile:290)
	at ciz$$Lambda$884/1414456375.run(Unknown Source)
	at cmt.a(SourceFile:429)
	at ciz.a(SourceFile:288)
	at ciz$$Lambda$736/2112194333.invoke(Unknown Source)
	at org.lwjgl.glfw.GLFWKeyCallbackI.callback(GLFWKeyCallbackI.java:23)
	at org.lwjgl.system.JNI.invokeV(Native Method)
	at org.lwjgl.glfw.GLFW.glfwWaitEventsTimeout(GLFW.java:2599)
	at cjm.a(SourceFile:308)
	at cjc.c(SourceFile:839)
	at cjc.a(SourceFile:378)
	at net.minecraft.client.main.Main.main(SourceFile:143)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Client thread
Stacktrace:
	at java.util.ArrayList.rangeCheck(ArrayList.java:653)
	at java.util.ArrayList.get(ArrayList.java:429)
	at ckp$b.a(SourceFile:100)
	at ckp$b.get(SourceFile:95)
	at coo.b(SourceFile:338)
	at coo.keyPressed(SourceFile:286)
	at ciz.a(SourceFile:290)
	at ciz$$Lambda$884/1414456375.run(Unknown Source)

-- Affected screen --
Details:
	Screen name: coo
Stacktrace:
	at cmt.a(SourceFile:429)
	at ciz.a(SourceFile:288)
	at ciz$$Lambda$736/2112194333.invoke(Unknown Source)
	at org.lwjgl.glfw.GLFWKeyCallbackI.callback(GLFWKeyCallbackI.java:23)
	at org.lwjgl.system.JNI.invokeV(Native Method)
	at org.lwjgl.glfw.GLFW.glfwWaitEventsTimeout(GLFW.java:2599)
	at cjm.a(SourceFile:308)
	at cjc.c(SourceFile:839)
	at cjc.a(SourceFile:378)
	at net.minecraft.client.main.Main.main(SourceFile:143)

-- System Details --
Details:
	Minecraft Version: 1.13-pre3
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 292369960 bytes (278 MB) / 570425344 bytes (544 MB) up to 1073741824 bytes (1024 MB)
	JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx1G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=16M
	Launched Version: 1.13-pre3
	LWJGL: 3.1.2 build 29
	OpenGL: Intel(R) HD Graphics 4400 GL version 4.3.0 - Build 20.19.15.4642, Intel
	GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

	Using VBOs: No
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: 
	Current Language: English (US)
	Profiler Position: N/A (disabled)
	CPU: 4x Intel(R) Core(TM) i5-4210U CPU @ 1.70GHz