bokeh: [BUG] "set_select" and "select" are not working well with layouts

With the rest of the elements: Circles, LinearAxis, Title the method set_select works well as you can check in the following example. But, I am not able to make it work when I try to select plots through the layout:

from bokeh.io import show
from bokeh.models import ColumnDataSource, LinearAxis, Title, Circle, Plot
from bokeh.plotting import figure, Figure
from bokeh.layouts import column, row

source = ColumnDataSource(dict(
    x=[1, 2, 3, 4, 5, 6],
    y=[1, 2, 3, 4, 5, 6],
))

# ------------------ PLOT 1 ---------------------- #

p = figure(
    title='Original',
    plot_width=200,
    plot_height=200,
    x_axis_label='X Axis',
    y_axis_label='Y Axis',
    tools='lasso_select,tap',
)
p.circle(
    x='x', y='y',
    size=3, source=source
)
p.xaxis.axis_label_text_font_style = 'normal'
p.yaxis.axis_label_text_font_style = 'normal'

# ------------------ BIGGER PLOT ---------------------- #

p2 = figure(
    name='bigger',
    title='Bigger',
    plot_width=200*3,
    plot_height=200*3,
    x_axis_label='X Axis',
    y_axis_label='Y Axis',
    tools='',
    toolbar_location=None,
)
c2 = p2.circle(
    name='p2_circle',
    x='x', y='y',
    size=3, source=source
)
p2.xaxis.axis_label_text_font_style = 'normal'
p2.yaxis.axis_label_text_font_style = 'normal'

big_width = 2

p2.set_select(
    selector=LinearAxis,
    updates=dict(
        axis_line_width=big_width,
        major_tick_line_width=big_width,
        minor_tick_line_width=big_width,

        axis_label_text_font_size='15pt',
        major_label_text_font_size='10pt'
    )
)

p2.set_select(
    selector=Title,
    updates=dict(text_font_size='20pt')
)

p2.set_select(
    selector=Circle,
    updates=dict(size=15)
)

r = row([p, p2])

r.set_select(
    selector=Figure,
    updates=dict(
        plot_width=500,
    )
)

# r.set_select(
#     selector=Plot,
#     updates=dict(
#         plot_width=500,
#     )
# )

show(r)

And I am getting this error

Traceback (most recent call last):
File "set_select_plot.py", line 81, in <module>
    plot_width=500,
File "env\lib\site-packages\bokeh-1.3.4-py3.7.egg\bokeh\model.py", line 628, in set_select
    for obj in self.select(selector):
File "env\lib\site-packages\bokeh-1.3.4-py3.7.egg\bokeh\core\query.py", line 87, in <genexpr>
    return (obj for obj in objs if match(obj, selector, context))
File "env\lib\site-packages\bokeh-1.3.4-py3.7.egg\bokeh\core\query.py", line 159, in match
    for key, val in selector.items():
AttributeError: type object 'Figure' has no attribute 'items'

Also, If I use select in a plot like this works well

p2.select(
    name='p2_circle'
)

And if I use the method with a layout an error is thrown TypeError: select() got an unexpected keyword argument 'name':

r.select(
    name='p2_circle'
)