'restart server <name>' should not require proxy, when restarts not self

[Gerold103]

Currently an attempt to use restart server <name> in a non-tarantool repository leads to an error:

[001] TarantoolInpector.handle() received the following error:
[001] Traceback (most recent call last):
[001]   File "/Users/gerold/Work/Repositories/vshard/test-run/lib/inspector.py", line 92, in handle
[001]     result = self.parser.parse_preprocessor(line)
[001]   File "/Users/gerold/Work/Repositories/vshard/test-run/lib/preprocessor.py", line 106, in parse_preprocessor
[001]     return self.server(stype, sname, options)
[001]   File "/Users/gerold/Work/Repositories/vshard/test-run/lib/preprocessor.py", line 338, in server
[001]     return getattr(self, attr)(ctype, sname, opts)
[001]   File "/Users/gerold/Work/Repositories/vshard/test-run/lib/preprocessor.py", line 318, in server_restart
[001]     'create', 'proxy', {'script': '"box/proxy.lua"'}
[001]   File "/Users/gerold/Work/Repositories/vshard/test-run/lib/preprocessor.py", line 261, in server_create
[001]     temp.install(silent=True)
[001]   File "/Users/gerold/Work/Repositories/vshard/test-run/lib/tarantool_server.py", line 715, in install
[001]     self.copy_files()
[001]   File "/Users/gerold/Work/Repositories/vshard/test-run/lib/tarantool_server.py", line 741, in copy_files
[001]     shutil.copy(self.script, self.script_dst)
[001]   File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 139, in copy
[001]     copyfile(src, dst)
[001]   File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 96, in copyfile
[001]     with open(src, 'rb') as fsrc:
[001] IOError: [Errno 2] No such file or directory: '/Users/gerold/Work/Repositories/vshard/test/box/proxy.lua'

Test case: I have 2 servers. 'Default' and 'storage_1_a'. I switch to default and call restart server storage_1_a. And get this error. At the same time, if I call

stop server <name>
start server <name>

everything works fine. I would expect that restart should be equivalent to stop/start.