Port MR1769 and MR1915 from float - Fix issues in OBJ_EDITING
# Basic Info
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- Original merge request in float repo: ivas-codec-pc/ivas-codec!1769 and https://forge.3gpp.org/rep/ivas-codec-pc/ivas-codec/-/merge_requests/1915
- Includes also ivas-codec-pc/ivas-codec!2072
- Includes also leftovers from ivas-codec-pc/ivas-codec!1768
issue