Messages when used with upcoming version of R6

[wch]

I'm in the process of releasing a new version of R6, and it results in warnings with ows4R.
They look like this:

  Superclass ISOAbstractObject has cloneable=FALSE, but subclass ISOCodelist has cloneable=TRUE. A subclass cannot be cloneable when its superclass is not cloneable, so cloning will be disabled for ISOCodelist.
  Superclass ISOAbstractObject has cloneable=FALSE, but subclass ISOCTCodelistValue has cloneable=TRUE. A subclass cannot be cloneable when its superclass is not cloneable, so cloning will be disabled for ISOCTCodelistValue.
...

See https://win-builder.r-project.org/incoming_pretest/R6_2.6.0_20250211_001904/reverseDependencies/summary.txt

To fix it, you can either set cloneable=TRUE for ISOAbstractObject, or cloneable=FALSE for ISOCTCodelistValue.

You can install the development version of R6 with:

devtools::install_github('r-lib/R6', build_vignettes = FALSE)

This is unfortunately holding up the release of R6 on CRAN, so if you could release an updated version soon, I would appreciate it.

[wch]

Update: CRAN has decided let R6 through, so this issue is no longer holding up the R6 release. But that does mean that users who have the current version of ows4R and the new version of R6 will see these messages.