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-rw-r--r--storage/filesystem/dotgit/dotgit.go3
1 files changed, 2 insertions, 1 deletions
diff --git a/storage/filesystem/dotgit/dotgit.go b/storage/filesystem/dotgit/dotgit.go
index a58c248..ba9667e 100644
--- a/storage/filesystem/dotgit/dotgit.go
+++ b/storage/filesystem/dotgit/dotgit.go
@@ -14,6 +14,7 @@ import (
"gopkg.in/src-d/go-billy.v4/osfs"
"gopkg.in/src-d/go-git.v4/plumbing"
+ "gopkg.in/src-d/go-git.v4/storage"
"gopkg.in/src-d/go-git.v4/utils/ioutil"
"gopkg.in/src-d/go-billy.v4"
@@ -596,7 +597,7 @@ func (d *DotGit) checkReferenceAndTruncate(f billy.File, old *plumbing.Reference
return err
}
if ref.Hash() != old.Hash() {
- return fmt.Errorf("reference has changed concurrently")
+ return storage.ErrReferenceHasChanged
}
_, err = f.Seek(0, io.SeekStart)
if err != nil {