run git submodule commands earlier (#29664)

eobuilder-ctl

@@ -167,9 +167,6 @@ def prepare_build(dist, project, cmd_options, new):
         if repo[0] == dist:
             package["repository"] = repo[1]
             package["copy_in_testing"] = False
-    # submodule management
-    call("git submodule init")
-    call("git submodule update")
 
     # get package source name
     control_file = os.path.join(debian_folder, 'control')
@@ -428,6 +425,8 @@ def main():
     os.chdir(git_project_path)
     call("git checkout --quiet %s" % options.branch)
     call("git pull")
+    call("git submodule init")
+    call("git submodule update")
     project = get_project_infos(git_project_path, options)
 
     if not os.path.exists(project['lock_path']):