RealmsTestCase.testFilesystemRealmIntegrity() fails when run twice with no clean

[ERROR] Tests run: 14, Failures: 0, Errors: 1, Skipped: 1, Time elapsed: 5.689 s <<< FAILURE! - in org.wildfly.extension.elytron.RealmsTestCase
[ERROR] testFilesystemRealmIntegrity(org.wildfly.extension.elytron.RealmsTestCase)  Time elapsed: 0.603 s  <<< ERROR!
org.wildfly.security.auth.server.RealmUnavailableException: ELY01024: Filesystem-backed realm cannot create duplicate identity for identity "user3"
	at org.wildfly.security.auth.realm.FileSystemSecurityRealm$Identity.createPrivileged(FileSystemSecurityRealm.java:874)
	at org.wildfly.security.auth.realm.FileSystemSecurityRealm$Identity.create(FileSystemSecurityRealm.java:808)
	at org.wildfly.extension.elytron.RealmsTestCase.testFilesystemRealmIntegrity(RealmsTestCase.java:428)
Caused by: java.nio.file.FileAlreadyExistsException: /Users/bstansberry/dev/wildfly/wildfly-core/elytron/target/test-classes/org/wildfly/extension/elytron/filesystem-realm-integrity/u/user3-OVZWK4RT.xml -> /Users/bstansberry/dev/wildfly/wildfly-core/elytron/target/test-classes/org/wildfly/extension/elytron/filesystem-realm-integrity/u/user3-OVZWK4RT.xml.VT7TKYEETSH7
	at java.base/java.nio.file.Files.createLink(Files.java:1102)
	at org.wildfly.security.auth.realm.FileSystemSecurityRealm$Identity.createPrivileged(FileSystemSecurityRealm.java:867)
	... 2 more