Port MR1769 and MR1915 from float - Fix issues in OBJ_EDITING

Basic Info

• Original merge request in float repo: ivas-codec-pc/ivas-codec!1769 (merged) and ivas-codec-pc/ivas-codec!1915 (merged)
• Includes also ivas-codec-pc/ivas-codec!2072 (merged)
• Includes also leftovers from ivas-codec-pc/ivas-codec!1768 (merged)