The 10.8.62 hotfix release fixes a couple of bugs. Firstly, an issue with custom page type forms for site templates that would not always correctly take effect and, secondly, an issue with stateless requests and getting variables from session storage. Thanks to Johnson Cheng and Seak Chiew Lee for reports and PR.
[PRESIDECMS-1098] - Session storage returning null value has caused 500 error
[PRESIDECMS-1099] - Form definition for homepage page type showing the same for main site and microsite with different site template.