How to fix Shift in the new Photoshop CC?

Question

Adobe Photoshop

After the update, Photoshop added the function of proportional transformation of objects without holding down the Shift key.
Yes, it was not convenient at first, but over time everything gets right and it became very convenient, well, you always need to hold down Shift.
But today I either pressed something, or maybe something happened, Photoshop requires you to always press Shift to proportionally transform objects (that is, as in the old Photoshop)
Use Legacy Free Transform pressed back and forth did not help, you still need to hold down Shift
Tell me how to return this function, the atoms again need to get used to))