fix: page hint for comment list, keep SSH settings on re-login, hard-link-free downloads, stable OWNER/REPO#N instance (follow gh)

Signed-off-by: bircni <bircni@icloud.com>

internal/app/ref.go

@@ -176,7 +176,10 @@ func (a *application) resolveRefs(cmd *cobra.Command, raws []string, kind refKin
 		if selected.Repo != "" && !a.sameRepository(selected.Repo, parsed.Repo) {
 			return target{}, nil, clierr.Wrap(clierr.Usage, fmt.Errorf("%s and %s are in different repositories; run one command per repository", source, raw))
 		}
-		selected, source = parsed, raw
+		// A reference without an instance must not replace one that names it, whatever the order.
+		if selected.Repo == "" || a.namesInstance(parsed.Repo) {
+			selected, source = parsed, raw
+		}
 	}
 	t, err := a.resolveRequest(cmd.Context(), targetRequest{requireRepo: true, authenticate: true, repo: selected.Repo, repoSource: source})
 	return t, numbers, err
@@ -193,6 +196,17 @@ func (a *application) sameRepository(first, second string) bool {
 	return oneErr == nil && twoErr == nil && strings.EqualFold(one.Slug(), two.Slug()) && (one.Host == "" || two.Host == "" || one.Host == two.Host)
 }
 
+// namesInstance reports whether a repository argument names its instance, as a URL or
+// HOST/OWNER/REPO does.
+func (a *application) namesInstance(raw string) bool {
+	s, err := a.settings()
+	if err != nil {
+		return false
+	}
+	parsed, err := settings.ParseRepository(raw, s.Hosts.Hosts)
+	return err == nil && parsed.Host != ""
+}
+
 // pullSelector resolves the pull request a pr command addresses: N, #N, OWNER/REPO#N, a pull
 // request URL, a head branch, OWNER:BRANCH, or, without an argument, the pull request of the
 // checked-out branch.