Git repositories can spent a while processing newly added or removed branches degrading indexing performance

   com.cenqua.fisheye.infinitydb.InfinityDbWrapper.exists(InfinityDbWrapper.java:75)
   com.cenqua.fisheye.infinitydb.EavEntityCu.deleteLong(EavEntityCu.java:276)
   com.cenqua.fisheye.rep.impl.CommonChangeSetDAO.unmarkAllAsAncestorOfBranch(CommonChangeSetDAO.java:886)
   com.atlassian.fisheye.git.GitScanner.onBranchHeadUpdated(GitScanner.java:624)
   com.atlassian.fisheye.git.GitScanner.updateRemovedBranches(GitScanner.java:311)
   com.atlassian.fisheye.git.GitScanner.fetchLatest(GitScanner.java:238)
   com.atlassian.fisheye.dvcs.DvcsScanner.updateLocalRepoClone(DvcsScanner.java:143)
   com.cenqua.fisheye.rep.BaseRepositoryScanner.ping(BaseRepositoryScanner.java:69)
   com.cenqua.fisheye.rep.BaseRepositoryEngine.doSlurp(BaseRepositoryEngine.java:86)
   com.cenqua.fisheye.rep.RepositoryEngine.slurp(RepositoryEngine.java:414)
   com.cenqua.fisheye.rep.ping.IndexingPingRequest.doRequest(IndexingPingRequest.java:27)
   com.cenqua.fisheye.rep.ping.OneOffPingRequest.doRequest(OneOffPingRequest.java:18)
   com.cenqua.fisheye.rep.ping.PingRequest$1.run(PingRequest.java:55)