When you decrement a value and it loses a digit, the caret become unattached to value

[Roman Komarov]

Here is an example: You have the following situation (| — the caret):

background: linear-gradient(10deg|, #fed 50%, #fdc 50%);

If you'd decrement the value, 10 would become the 9 and the caret would become unattached to value:

background: linear-gradient(9deg,| #fed 50%, #fdc 50%);

This is bad, 'cause if you'd increment or decrement after that, the command won't work and you'd jump to the start/end of the input instead.

[Roman Komarov]

The same thing happens if you'd decrement the value by .1 from 10.1em|, but in that case you'd need to adjust the caret's position by two characters to left.

[Lea Verou]

Cannot reproduce in v2, closing