'update' does not work as expected when using dialect "mvel" with property reactive

Issue

'update' does not work as expected when using dialect "mvel" with property reactive(this is enabled in RHDM7 by default[1]).
For instance, when using update() after fact modification like the following rules,

rule fact_update
        when
                $fact: Fact(
                        name == "TEST_UPDATE"
                )
        then
                $fact.value = "1";
                update($fact);
                logger.debug("executed fact_update: " + $fact);
end

rule fact_value_updated
        when
                $fact: Fact(value == "1")
        then
                logger.debug("value updated.");
end

the rule 'fact_update' is continuously executed even though property reactivity is enabled.

[1]
Property reactivity enabled by default since RHDM 7.0.0