Many thanks for fixing T333786, however, that introduces a small bug:
Pages in Translations: namespace and translation pages contain the reason “Part of translatable page XXX”. Previously, XXX was correctly the source page name (example).

Reproduction steps:

• Prepare and mark the English page X for translation.
• Move/Rename X to Y.
• Review history of
  • Y/en
  • Translations:Y/1/en

What happens?
Log entry:

FuzzyBot moved page X/en to Y/en without leaving a redirect: Part of translatable page "X/en"
FuzzyBot moved page Translations:X/1/en to Translations:Y/1/en without leaving a redirect: Part of translatable page "Translations:X/1/en"

Example

What should have happened instead?
The (previous or current) source page name should still be mentioned as the translatable page. By the way, it should be linked.
Log entry expected:

FuzzyBot moved page X/en to Y/en without leaving a redirect: Part of translatable page "X"
FuzzyBot moved page Translations:X/1/en to Translations:Y/1/en without leaving a redirect: Part of translatable page "X"