There were few bugs in the _isInitialized() function which might trigger
git repo to be reinitialized and patches failing to apply.
(From OE-Core rev: 80500ecda4c1bc8812e6e078b6b0db5ec46624de)
Signed-off-by: Pavel Zhukov <pavel.zhukov@huawei.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>