Rule boolean parameter conversion error

[howkymike]

Description

When editing a rule with an action which has a boolean parameter, the error is thrown which prevents proper form rendering (especially "Save" button action is not assigned).

Error

TypeError: paramValue.toLowerCase is not a function
    at Alfresco.RuleConfigActionCustom._convertType (rule-config_4a306578c85215e54534b99e5391c237.js:2023:31)
    at Alfresco.RuleConfigActionCustom._createCheckbox (rule-config_4a306578c85215e54534b99e5391c237.js:1596:37)
    at Alfresco.RuleConfigActionCustom.edit (rule-config_4a306578c85215e54534b99e5391c237.js:1375:28)
    at Alfresco.RuleConfigActionCustom.RuleConfig__createConfigParameterUI [as _createConfigParameterUI] (rule-config_4a306578c85215e54534b99e5391c237.js:950:40)
    at Alfresco.RuleConfigActionCustom.RuleConfig__createConfigUI [as _createConfigUI] (rule-config_4a306578c85215e54534b99e5391c237.js:772:15)
    at Alfresco.RuleConfigActionCustom.RuleConfig_displayRulConfigs [as displayRuleConfigs] (rule-config_4a306578c85215e54534b99e5391c237.js:394:18)
    at RuleEdit_constructor.RuleEditUtil_displayRuleConfigs [as displayRuleConfigs] (rule-config-util_c10402243abfc520abac3eaed8927dd7.js:290:21)
    at RuleEdit_constructor.RuleEdit_displayRule [as displayRule] (rule-edit_e5e6ad389f43182b4768920572895dbf.js:383:15)
    at RuleEdit_constructor.RuleEdit_onRuleConfigsReady [as onRuleConfigsReady] (rule-edit_e5e6ad389f43182b4768920572895dbf.js:344:18)
    at RuleEdit_constructor.RuleEditUtil_onRuleConfigReady [as onRuleConfigReady] (rule-config-util_c10402243abfc520abac3eaed8927dd7.js:173:15)

Steps to reproduce

1. Go to Repository and Manage rules
2. Create a new rule with action "Copy" (which contains a checkbox parameter)
3. Edit an action

Proposed solution

In the rule-config.js file in the _convertType() function in the "d:boolean" if, add the following code:

if (typeof paramValue === "boolean") {
    return paramValue;
}

Affected file

rule-config.js

Affected version

Tested on Alfresco Community 7.2.0.

Background

It seems the connected error has been already reported by the Seng Liaw (MNT-22238) and @alexbalmus tried to fix it here which is the cause of this error.
@alexbalmus boolean values from "Set property" action are strings, whereas boolean values from action parameters are boolean values - probably this led to the mistake.