ArrayIndexOutOfBoundsException on clear screen if the cursor in on the start position

wildfly-core] (master)$ ./build/target/wildfly-core-5.0.0.Beta1-SNAPSHOT/bin/jboss-cli.sh 
You are disconnected at the moment. Type 'connect' to connect to the server or 'help' for the list of supported commands.
# type 'a'
[disconnected  /] a[]
# press "home" or left cursor key to move the cursor back to initial position
[disconnected  /] []a
# clear the screen (Ctrl+L)
Exception in thread "CLI Terminal Connection (uninterruptable)" java.lang.ArrayIndexOutOfBoundsException: -1
	at org.aesh.readline.Buffer.printInsertedData(Buffer.java:561)
	at org.aesh.readline.Buffer.insert(Buffer.java:217)
	at org.aesh.readline.AeshConsoleBuffer.writeChars(AeshConsoleBuffer.java:143)
	at org.aesh.readline.action.mappings.Clear.accept(Clear.java:39)
	at org.aesh.readline.Readline$AeshInputProcessor.parse(Readline.java:245)
	at org.aesh.readline.Readline$AeshInputProcessor.access$100(Readline.java:174)
	at org.aesh.readline.Readline.readInput(Readline.java:95)
	at org.aesh.readline.Readline.access$1000(Readline.java:57)
	at org.aesh.readline.Readline$AeshInputProcessor.lambda$start$1(Readline.java:333)
	at org.aesh.terminal.EventDecoder.accept(EventDecoder.java:118)
	at org.aesh.terminal.EventDecoder.accept(EventDecoder.java:31)
	at org.aesh.io.Decoder.write(Decoder.java:133)
	at org.aesh.readline.tty.terminal.TerminalConnection.openBlocking(TerminalConnection.java:212)
	at org.aesh.readline.tty.terminal.TerminalConnection.openBlocking(TerminalConnection.java:199)
	at org.jboss.as.cli.impl.ReadlineConsole$CLITerminalConnection.lambda$null$1(ReadlineConsole.java:171)
	at java.lang.Thread.run(Thread.java:748)