loop.length is not of type Number

[ChristianCiach]

Since Pebble 2.5 I've updated from 2.4.0 to 2.6.1, I encounter this error:

Caused by: java.lang.RuntimeException: invalid operands for mathematical operation [SUBTRACT]
	at com.mitchellbosecke.pebble.utils.OperatorUtils.wideningConversionBinaryOperation(OperatorUtils.java:157)
	at com.mitchellbosecke.pebble.utils.OperatorUtils.subtract(OperatorUtils.java:56)
	at com.mitchellbosecke.pebble.node.expression.SubtractExpression.evaluate(SubtractExpression.java:21)

This is the statement inside the template:
{% if loop.index < ( loop.length - 1) %}

This worked before.

Using a debugger, I can see that "loop.length" is of type "ForNode$1" (whatever this may be), while "loop.index" is of type "Integer" (as expected).

[ebussieres]

Just made a fix and a release (2.6.2) for this. It's gonna be available in a few minutes in central repository