tdf#139857 release mouse on launch context menu

Change-Id: I2baa635dbc81c326eecb1fc579a0f80901d4117d
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/109895
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
diff --git a/sc/source/ui/app/inputwin.cxx b/sc/source/ui/app/inputwin.cxx
index 04c4e0e..54e4df5a 100644
--- a/sc/source/ui/app/inputwin.cxx
+++ b/sc/source/ui/app/inputwin.cxx
@@ -1697,6 +1697,8 @@ bool ScTextWnd::Command( const CommandEvent& rCEvt )
                    Size aSize = GetOutputSizePixel();
                    aPos = Point(aSize.Width() / 2, aSize.Height() / 2);
                }
                if (IsMouseCaptured())
                    ReleaseMouse();
                pViewFrm->GetDispatcher()->ExecutePopup("formulabar", &mrGroupBar.GetVclParent(), &aPos);
            }
        }