strange switch error if folder is external but in the new repo is versioned as normal folder

Hi,

Take the following repo with the following structure:

branchA
svn external folder "test"
branchB
normal versioned folder "test"

If we are initially on branchB and we switch to branchA then everything is fine!
If we are initially on branchA and we switch to branchB then we get an "An obstructing working copy was found" error and there is no "test" folder.

Expected behaviour: If we are initially on branchA and we switch to branchB then no error should be reported and in the working copy, folder "test" should have the contents of "test" from branchB.

Is this a known issue already?

Windows 10
SVN 1.14
Tortoise SVN

Best regards,
Mihai