tar with version leads to empty directory

[VictorLamoine]

repositories:
  doxygen:
    type: tar
    url: https://github.com/doxygen/doxygen/releases/download/Release_1_13_2/doxygen-1.13.2.linux.bin.tar.gz

This works as expected:

vcs import --input repos.list

 ls -1 doxygen/
doxygen-1.13.2

But adding a version makes vcs fail:

repositories:
  doxygen:
    type: tar
    url: https://github.com/doxygen/doxygen/releases/download/Release_1_13_2/doxygen-1.13.2.linux.bin.tar.gz
    version: 1.13.2

vcs import --input repos.list

 ls -al doxygen/

The directory is empty

Am I using it wrong or is it a bug in the "members remapping"?

vcstool/vcstool/clients/tar.py

Lines 71 to 82 in daf3893

	if not command.version:
	members = None
	else:
	# remap all members from version subfolder into destination
	def get_members(tar, prefix):
	for tar_info in tar.getmembers():
	if tar_info.name.startswith(prefix):
	tar_info.name = tar_info.name[len(prefix):]
	yield tar_info
	prefix = str(command.version) + '/'
	members = get_members(tar, prefix)
	tar.extractall(self.path, members)