Bug summary

Annotations placed outside of an axes with xycoords='figure fraction' are not respected by fig.save_fig(bbox_inches='tight')

Code for reproduction

plt.plot([1, 2])
figannot = plt.annotate('figure fraction annotation', (0.2, 0.97), xycoords='figure fraction')
axesannot = plt.annotate('axes fraction annotation', (0.2, 1.05), xycoords='axes fraction')
plt.gcf().savefig('test.svg', bbox_inches='tight')

Actual outcome

This is a screenshot from Inkscape.

Expected outcome

The annotation using figure fraction should get the same treatment as the annotation using axes fraction.

Additional information

The figure fraction annotation returns a Bbox with get_window_extent so it beats me.

The effects of this bug are pretty dramatic if leaving a lot of empty space in a figure window (e.g. add_axes((0.1, 0.5, 0.1, 0.4))).

Operating system

Windows

Matplotlib Version

3.6.3

Matplotlib Backend

Qt5Agg

Python version

Python 3.8.3

Jupyter version

No response

Installation

pip