Wrong axis label when using components argument in sc.pl.diffmap

[fbnrst]

Example:

import scanpy.api as sc
adata = sc.datasets.blobs()

sc.pp.neighbors(adata)
sc.tl.diffmap(adata)
sc.pl.diffmap(adata, components='1,2')

gives the output:

The axis labels should be DC1 and DC2. If running sc.pl.diffmap(adata) the axis labels are correct.