runOn: a space after the extension, not a bare dash

0c5ede9 cut "Angry.Birds.Rio.v1.2.2.cracked.READ.NFO-THETA.rar" at .NFO: the
release lost its group, and two groups' releases of one game would merge.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

lib/release/identity.ts

@@ -298,7 +298,8 @@ const RUN_ON = /\.(?:part\d+\.rar|vol\d+[+-]\d+\.par2|par2|rar|r\d{2,3}|7z(?:\.\
 /**
  * A quoted name that runs on past its extension into a title ("lois 1258 Billy Joel - Extremes.part01.rar lois 1258 Billy
  * Joel - Extremes ", "GrooveCoverage.part26.rarGrooveCoveragebestof", "Goga Sekulic.part134.rar - Goga Sekulic - …": each
- * part a release of its own): the name up to that extension, when a space or a dash follows it, or the name's own start.
+ * part a release of its own): the name up to that extension, when a space follows it, or the name's own start. Not a
+ * bare dash ("Angry.Birds.Rio.v1.2.2.cracked.READ.NFO-THETA.rar" keeps its group).
  */
 export function runOn(name: string): string {
   const head = name.slice(0, 4).toLowerCase()
@@ -307,7 +308,7 @@ export function runOn(name: string): string {
     const end = m.index + m[0].length
     const rest = name.slice(end)
     if (rest.length === 0) return name
-    if (/^\s|^\s*-/.test(rest) || (ascii && rest.slice(0, 4).toLowerCase() === head)) return name.slice(0, end)
+    if (/^\s/.test(rest) || (ascii && rest.slice(0, 4).toLowerCase() === head)) return name.slice(0, end)
   }
   return name
 }