Azalea top texture is mirrored incorrectly

For a comprehensive list of other examples of issues with 2D planes in models not being mirrored as expected, click here.

The bug

The plane composing the top of an azalea does not mirror on the back as one would expect, resulting in physical/illogical weirdness.

How to reproduce

1. Place an azalea

2. View a specific section of the azalea top from above, for example the sort of L shape visible to the left from the underside

3. View the exact same section of that texture plane from the inside (best seen with night vision, due to MC-213804)

4. Note that the exact texture pattern at that position is different, even though it should be the same

Relates to MC-190774, MC-199237, MC-199239, MC-199241, MC-199242, MC-199248, MC-201748, MC-201750, MC-201751, MC-201753, MC-201760, MC-202595, MC-202598, MC-203036, MC-205158, MC-206570, MC-212305, MC-214693, MC-214694, MC-214695, MC-214696