Fix accept logic to actually work

osc-staging.py

@@ -191,7 +191,7 @@ def do_staging(self, subcmd, opts, *args):
             # Is it safe to accept? Meaning: /totest contains what it should and is not dirty
             version_totest = api.get_binary_version(api.project, "openSUSE-release.rpm", repository="totest", arch="x86_64")
 
-            if version_totest or opts.force:
+            if version_totest is None or opts.force:
                 # SLE does not have a totest_version or openqa_version - ignore it
                 version_openqa = version_totest
                 totest_dirty   = False

osclib/stagingapi.py

@@ -1049,8 +1049,10 @@ class StagingAPI(object):
         url = self.makeurl(['build', project, repository, arch, '_repository', "%s?view=fileinfo" % rpm])
         try:
             return ET.parse(http_GET(url)).getroot().find('version').text
-        except urllib2.HTTPError:
+        except urllib2.HTTPError, e:
+            if e.code == 404:
                 return None
+            raise
 
     def load_file_content(self, project, package, filename):
         """