"Variable not found" error in ggmarginal

[ASmirnov-HORIS]

Code:

ggplot({'x': [], 'y': []}, aes('x', 'y')) + \
    geom_point() + \
    ggmarginal("t", layer=geom_histogram())

Result:

Variable not found: '..density..'. Variables in data frame: ['x', 'y']

But:

• the library should work with empty data and
• shouldn't complain about '..density..' when current stat is '..count..'

[IKupriyanov-HORIS]

This code snippet also doesn't work:

from lets_plot import *
LetsPlot.setup_html()

ggplot(data={'x': [1, 2], 'y': [1, 2]}) + \
    geom_smooth(aes('x', 'y'), tooltips=layer_tooltips().line('@..se..'))

Result:
'Variable not found: '..se..'. Variables in data frame: ['y', '..ymin..', '..ymax..', 'x']'