fix(streams_issues): delete unneed relation.

src/DB/StreamsIssuesTable.js

@@ -17,12 +17,11 @@ export class StreamsIssuesTable {
    await this._unlinkMismatchIssues(issues);

    // see IssuesTable
    const max = Config.databaseMax;
    await DB.exec(`
      delete from
        streams_issues
      where
        issue_id in (select id from issues order by updated_at desc limit ${max}, 1000)
        issue_id not in (select id from issues)
    `);
  }

src/Electron/StreamCenter.js

@@ -32,7 +32,7 @@ export class StreamCenter {
          , count(1) as count
        from
          streams_issues as t1
        left join
        inner join
          issues as t2 on t1.issue_id = t2.id
        where
          ((read_at is null) or (updated_at > read_at))

src/Electron/SystemStreamCenter.js

@@ -41,7 +41,7 @@ export class SystemStreamCenter {
          , count(1) as count
        from
          streams_issues as t1
        left join
        inner join
          issues as t2 on t1.issue_id = t2.id
        where
          ((read_at is null) or (updated_at > read_at))