branch deletion failure in git

[2015-01-04 07:29:41,252] ERROR fisheye Error removing local branch: [error: Cannot delete the branch 'someBranch' which you are currently on.]

com.atlassian.utils.process.ProcessException: While executing: "git branch -D someBranch" in [/opt/j2ee/domains/atlassian.com/atlaseye/data/var/cache/jira-projects/clone]
        at com.atlassian.fisheye.dvcs.client.DvcsContext.executeCommand(DvcsContext.java:260)
        at com.atlassian.fisheye.dvcs.client.DvcsContext.executeCommand(DvcsContext.java:235)
        at com.atlassian.fisheye.git.GitScanner.removeLocalBranch(GitScanner.java:326)
        at com.atlassian.fisheye.git.GitScanner.fetchLatest(GitScanner.java:232)
        at com.atlassian.fisheye.dvcs.DvcsScanner.updateLocalRepoClone(DvcsScanner.java:143)
        at com.cenqua.fisheye.rep.BaseRepositoryScanner.ping(BaseRepositoryScanner.java:69)
        at com.cenqua.fisheye.rep.BaseRepositoryEngine.doSlurp(BaseRepositoryEngine.java:86)
        at com.cenqua.fisheye.rep.RepositoryEngine.slurp(RepositoryEngine.java:414)
        at com.cenqua.fisheye.rep.ping.IndexingPingRequest.doRequest(IndexingPingRequest.java:27)
        at com.cenqua.fisheye.rep.ping.IncrementalPingRequest.doRequest(IncrementalPingRequest.java:30)
        at com.cenqua.fisheye.rep.ping.PingRequest$1.run(PingRequest.java:55)
        at com.cenqua.fisheye.util.NamedExecution.run(NamedExecution.java:27)
        at com.cenqua.fisheye.rep.ping.PingRequest.process(PingRequest.java:52)
        at com.cenqua.fisheye.rep.RepositoryHandle.processPingRequests(RepositoryHandle.java:213)
        at com.cenqua.fisheye.rep.RepositoryHandle.access$100(RepositoryHandle.java:57)
        at com.cenqua.fisheye.rep.RepositoryHandle$2.run(RepositoryHandle.java:169)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:662)