iPad, upon project first open: better re-rendering when a Group Layer's Scroll Enabled input is set true#640

pianostringquartet merged 2 commits intodevelopmentStitchDesign/Stitch:developmentfrom

6764-setting-scroll-y-enabled-=-true-in-the-inspector-after-first-opening-a-project-does-not-unblock-the-proper-fieldsStitchDesign/Stitch:6764-setting-scroll-y-enabled-=-true-in-the-inspector-after-first-opening-a-project-does-not-unblock-the-proper-fieldsCopy head branch name to clipboard