495
494
branch = Branch.open_containing(source)[0]
496
495
outf = exporter._get_output_stream(destination)
497
496
exporter = exporter.BzrFastExporter(branch,
498
outf=outf, ref="refs/heads/%s" % git_branch, checkpoint=checkpoint,
497
outf=outf, ref=b"refs/heads/%s" % git_branch.encode('utf-8'), checkpoint=checkpoint,
499
498
import_marks_file=import_marks, export_marks_file=export_marks,
500
499
revision=revision, verbose=verbose, plain_format=plain,
501
500
rewrite_tags=rewrite_tag_names, no_tags=no_tags, baseline=baseline)