Merge branch 'stable-4.5'

* origin/stable-4.5:
  Fix one case of missing object

Change-Id: Ia6384f4be71086d5a0a8c42c7521220f57dfd086
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

diff --cc org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/GC.java
Simple merge