Don't show a progress bar when there's nothing to copy. (#1513)
Don't show a progress bar when there's nothing to copy. (#1513)


quiltdata/quilt,quiltdata/quilt,quiltdata/quilt,quiltdata/quilt-compiler,quiltdata/quilt,quiltdata/quilt-compiler,quiltdata/quilt-compiler,quiltdata/quilt,quiltdata/quilt-compiler