When resetting a profile's skin on minecraft.net, the skin reset success message is "Your skin has been reseted."
This is incorrect grammar and should be changed to "Your skin has been reset."
Video of bug: https://gyazo.com/80469f5c6c00d75b0edbab00833b11a2
Seems to be fixed. The message seems to have been changed to, "Skin has been successfully reset". But I'm not 100% sure if we are looking at the same thing since your Gyazo link no longer works. This message shows up on https://www.minecraft.net/en-us/msaprofile/mygames/editskin. Funnily they still internally use the misspelled word, "reseted".