delayedAssign changing values

It is really strange that the delayedAssign is evaluated in the environment
it is called from, and thus can have side effects.
so
x=2
y=3
delayedAssign("x", {y <- 7; y+3}) 

gives

x

[1] 10

y

[1] 7

Both x and y changed.
More intuitive would have been the behavior
x=2
y=3
delayedAssign("x", local({y <- 7; y+3}) )

x

[1] 10

y

[1] 3
which only changes x.
Or, at least that should be the default behavior....

Michael

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