In the test instance where the new Vue 3 version of Section Translation is available (T299622), editing shows a duplicate toolbar when editing the second time: first editing of the title works as expected, but editing the first sentence on the first text paragraph shows a duplicated toolbar.
I tested this when translating the "Ethymology" section of Paneer from English to Spanish (using the option to start the translation from scratch):
This issue is not occurring on Test Wikipedia where the code updated for the new Vue version is not present:
| Test instance with Vue 3 | Test Wikipedia (Vue 2) |
|---|---|
 |  |
