VcsManager: Clear topLevel directory when necessary

Clear the topLevelDirectory when being asked to find the version
control system responsible for directory "".

Change-Id: I8806ebff1200f0fc936715ffab94acf1f10cb386
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/plugins/coreplugin/vcsmanager.cpp b/src/plugins/coreplugin/vcsmanager.cpp
index 239145c57f..2d4789e9e5 100644
--- a/src/plugins/coreplugin/vcsmanager.cpp
+++ b/src/plugins/coreplugin/vcsmanager.cpp
@@ -233,8 +233,11 @@ IVersionControl* VcsManager::findVersionControlForDirectory(const QString &input
 {
     typedef QPair<QString, IVersionControl *> StringVersionControlPair;
     typedef QList<StringVersionControlPair> StringVersionControlPairs;
-    if (inputDirectory.isEmpty())
+    if (inputDirectory.isEmpty()) {
+        if (topLevelDirectory)
+            topLevelDirectory->clear();
         return 0;
+    }
 
     // Make sure we an absolute path:
     const QString directory = QDir(inputDirectory).absolutePath();