syntax: multiline arrays are not intended correctly with "$()" in array member

[michix]

Given the following code:

RUN_CMD=("$(foo)" \
  "bar")

When I format it with shfmt I get:

RUN_CMD=("$(foo)"
"bar")

The backslash is removed at the end (which is OK), but the second line is not intended. This only occurs when there is the $( as the first value in the array, with ( the issue does not occur.

[mvdan]

Minimal repro:

$ cat f.sh
arr1=($(foo)
	bar)
arr2=(foo
	bar)
$ shfmt f.sh
arr1=($(foo)
bar)
arr2=(foo
	bar)