Pinned memory importance always 0.0 in recompute_importance formula

[ajianaz]

Problem

store.rs:315:

let importance = 0.3 * access_score + 0.3 * recency_score + 0.2 * connectivity + 0.2 * 0.0;

The pinned bonus term is hardcoded 0.2 * 0.0 instead of using m.pinned.

Fix

let pinned_score = if m.pinned { 1.0 } else { 0.0 };
let importance = 0.3 * access_score + 0.3 * recency_score + 0.2 * connectivity + 0.2 * pinned_score;

Severity: MAJOR (importance calc wrong for pinned memories)

[ajianaz]

Fixed in #983 (merged to develop)