Auto-generated Legend for graduated symbology: incorrect sizing, duplicate entries, and edit mode breaks it entirely

[AMonteroUNAV]

Follow-up to #1404 and my earlier post today — after more testing, here's a precise repro with the actual bugs, not just a missing-feature question.

Setup: a point layer styled with "Graduated" symbology (proportional circles), field = a numeric count (range ~1–120), manual breaks, real screen-pixel radius (min 3px / max 24px).

What happens:

1. Activate the Legend component (Complementos → Legend) fresh, without touching anything → it auto-populates for this layer with TWO separate blocks for the same data:

   • A flat bulleted list of the class ranges (e.g. "6 – 17", "17 – 33", "33 – 59", "59 – 120", "≥ 120"), all rendered as identical-size dots.
   • Below that, a second set of three circles labeled "1", "60,5", "120" that DO vary in size — but even these don't match the actual on-map circle sizes (they look larger/rescaled independently, not 1:1 with the real min/mid/max radius from the layer style).

   So even in the "good" auto state, it's showing the same classification twice in two different (and both somewhat wrong) representations, instead of one clean graduated legend with correctly-sized, correctly-colored circles.

2. Clicking the pencil/edit icon on the Legend item to try to reorder or rename entries switches it into the manual "dictionary" editor — and this discards BOTH the correct size AND the correct color: all circles collapse to the same size, and the color resets to a generic blue instead of the layer's actual orange (#EF9F27).

Expected behavior (how QGIS/ArcGIS handle this):

• One single graduated legend block per layer: a small number of representative circles (e.g. min/mid/max, or one per class break) sized proportionally to match the real rendered radius on the map, colored to match the actual layer symbology.
• The ability to reorder/rename legend items (or blocks) WITHOUT losing that computed size/color — i.e. reordering shouldn't force a fallback to the flat dictionary editor.

Is this a known limitation, or should I file this as a bug in Issues instead of Ideas? Happy to attach screenshots of both states if useful.

[giswqs]

This is a bug. Will look into it.

[giswqs]

Fixed in #1413