## Description
**Steps to reproduce:**
# Go to https://www.wikifunctions.org/wiki/Special:CreateObject?zid=Z16683
**Observed behavior:**
* The renderer field is filled with a 0 (Zero), so the example field placeholder is not visible
* This means that the renderer function has run on initialization, while it shouldn't
* This feature was introduced in this patch https://gerrit.wikimedia.org/r/c/mediawiki/extensions/WikiLambda/+/1014482 but it's unclear why it's not working in this case
**Expected behavior (Acceptance criteria):**
* [ ] On an empty object (Create page), the renderer function should not run on initialization
* [ ] The field should be empty
* [ ] The placeholder values (examples from testers) should be visible
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## Completion checklist
* [ ] Before closing this task, review one by one the checklist available here: https://www.mediawiki.org/wiki/Abstract_Wikipedia_team/Definition_of_Done#Front-end_Task/Bug_Completion_Checklist