Does Inkscape create versioned backup files when the keep backup option is enabled?

Backup versioning behavior in Inkscape

The goal is to determine whether activating the "Keep backup copy of each saved file" preference results in a series of versioned backup files (e.g., filename.svg~1, filename.svg~2) or merely a single tilde‑suffixed file that is overwritten on every save, and how this interacts with the autosave recovery mechanism.

Constraints include the fact that backup files currently use a fixed ~ suffix and are replaced each time the document is saved, autosave files are stored in a separate config directory and may be purged on clean exit, and the documentation does not clarify if any versioning scheme exists or has changed between releases.

Does enabling the keep backup preference cause Inkscape to retain multiple numbered backup copies over time? If versioned backups are not produced, what is the recommended method for recovering a prior saved state of an SVG document?