bitcoin-cli deriveaddresses always returns an range error #16855

<!-- This issue tracker is only for technical issues related to Bitcoin Core. General bitcoin questions and/or support requests are best directed to the Bitcoin StackExchange at https://bitcoin.stackexchange.com. For reporting security issues, please read instructions at https://bitcoincore.org/en/contact/. If the node is "stuck" during sync or giving "block checksum mismatch" errors, please ensure your hardware is stable by running memtest and observe CPU temperature with a load-test tool such as linpack before creating an issue! -->

<!-- Describe the issue -->

Expected behavior Without range is fine!

bitcoin-cli deriveaddresses "wpkh([d34db33f/84'/0'/0']0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798)#n9g43y4k"
[
  "bcrt1qw508d6qejxtdg4y5r3zarvary0c5xw7kygt080"
]

<!--- What behavior did you expect? -->

Actual behavior

Add range fail...

bitcoin-cli deriveaddresses "wpkh([d34db33f/84'/0'/0']0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798)#n9g43y4k" "[0,2]"
error code: -8
error message:
Range should not be specified for an un-ranged descriptor

<!--- What was the actual behavior (provide screenshots if the issue is GUI-related)? -->

To reproduce

bitcoin-cli deriveaddresses

<!--- How reliably can you reproduce the issue, what are the steps to do so? -->

System information

bitcoin 0.18.1 MacBook Sierra 10.13.6 (17G8030) Regtest

<!-- What version of Bitcoin Core are you using, where did you get it (website, self-compiled, etc)? -->

<!-- What type of machine are you observing the error on (OS/CPU and disk type)? -->

<!-- GUI-related issue? What is your operating system and its version? If Linux, what is your desktop environment and graphical shell? -->

<!-- Any extra information that might be useful in the debugging process. -->

<!--- This is normally the contents of a `debug.log` or `config.log` file. Raw text or a link to a pastebin type site are preferred. -->

https://bitcoin.stackexchange.com/questions/87538/bitcoin-cli-deriveaddresses-always-returns-an-error/90340#90340

Sorry

I'm sorry, it wasn't a problem ... I was using a descriptor without range

 ./bitcoin-cli getdescriptorinfo "wpkh([d34db33f/84h/0h/0h]0279be667ef9dcbbac55a06295Ce870b07029Bfcdb2dce28d959f2815b16f81798)"
{
  "descriptor": "wpkh([d34db33f/84'/0'/0']0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798)#n9g43y4k",
  "isrange": false,
  "issolvable": true,
  "hasprivatekeys": false
}