shfmt: places ";then" on wrong line when using heredoc as stdin for a command

[dionysius]

shfmt v3.6.0

Before:

#!/bin/bash

if ! lxc launch --vm "$image" "$name" <<EOF
${instance_config}
EOF
then
        lxc delete -f "$name"
fi

After:

#!/bin/bash

if ! lxc launch --vm "$image" "$name" <<EOF; then
${instance_config}
EOF
        lxc delete -f "$name"
fi

It breaks the script and modifies the heredoc content. It should not move the then and keep it on his own line without prepended ;.

Note: Putting the command into the if is recommended by SC2181. Obviously <<<"${instance_config}" can be used but the issue is still present when using heredoc.