[fix] #1322 `sync`: chained transactions generate make the sync fail

          // Fills in correctly the SINDEX

          await Promise.all(_.where(sync_sindex.concat(local_sindex), { op: 'UPDATE' }).map(async (entry: any) => {

            if (!entry.conditions) {

              const src = await this.dal.sindexDAL.getSource(entry.identifier, entry.pos);

              entry.conditions = src.conditions;

              if (entry.srcType === 'D') {

                entry.conditions = 'SIG(' + entry.identifier + ')'

              } else {

                // First: have a look locally, but only chained transactions would have `localSrc` matching (giving conditions)

                const localSrc = local_sindex.filter(s => s.identifier === entry.identifier && s.pos === entry.pos && s.conditions)[0]

                const src = localSrc || (await this.dal.getSource(entry.identifier, entry.pos, false))

                entry.conditions = src.conditions

              }

            }

          }))