Folders with the character & in their name and from the same level behave like siblings if the first part of the folder name is the same

Folders with the character & in their name and from the same level, no matter the parent), behave like siblings if the first part of the folder name is the same (before the &)

To reproduce

• open Filemanager
• create the folder "test & test"
• add a file into it
• create a sub folder of "test & test" named "test & test"
  At this point there are no issue detected
• create an other folder "test2 & test2"
• create a sub folder of "test2 & test2" names "test & test"

Here is the first part of the issue

• clic on this second folder and you'll see the file you added in the first "test a test" AND you'll see both "test & test" highlighted
• Refresh the page
  Here we can see that the oldest sibling has been deleted (to confirm) and that all files can be found by the second "test & test" placed in "test2 & test2". This deleting/moving behaviour can be reproduced for all following test since it's linking siblings.

Second part

• reproduce the past steps in naming your folder "test & ANYTHING" in replacing ANYTHING by anything.
• Same issue will happen

Third part

• The second test can be reproduce at any level of folders.
• Create a sub sub folder name "test & test"
• It will be linked to the sub level "test & test"

Fourth part

• Third part do happen also when you're creating a second "test & test" folder at the root level (folder).
• Your root folder will be link to any other level of "test & test' folder BUT not with the first one created.

Expected result

• Being able to have any folder with the same name than an other since they are not at the same level & with the same parent than an other
• Do not be blocked by the folder names