To reproduce:
1. open the attached 'problemScene'
2. select the 'elephant touch' object
3. in the animation tab, make sure the 'Default Take (Read-only)' is selected
4. click in the animation tab and hit the F key
the main scene view has the Fit operation applied, not the animation view. Zoom in a little via the mouse wheel and try F again to confirm it isn't fitting
5. change the animation tab to be editing the 'Default Take'
6. use the F key to fit again this time it works

Or check out attached video with repro