DB-based repositories that no longer exist show up in the repo list at Spoon startup, and can't be removed

1. Download and unpack Kettle
2. Run start-servers.sh
3. Run spoon.sh
4. Create a DB-based repository
5. Quit Kettle
6. Delete the pdi-ee directory (remove Kettle, in other words)
7. Reinstall Kettle (or unpack a new PDI build)
8. Start the new instance of Kettle
9. The old repository you created is visible in the repo list upon startup
10. Select the old repository, then click the Delete button

Result: The old repository is not removed from the list, and the following error occurs (the repository listing is in fact removed, but it stays in the list; restart Kettle and you'll see that it no longer appears):

INFO 29-03 10:53:42,528 - SetElements on listbox called: collection has 1 rows
Changed to: file:///home/valour/Desktop/pdi-ee/data-integration/docs/English/welcome/kettle_document_map.html
org.pentaho.di.core.exception.KettleException:
Error connecting to the repository!


No repository exists on the specified connection.

To create a repository, select the Edit' button followed by the 'Create or upgrade' button.


at org.pentaho.di.repository.kdr.delegates.KettleDatabaseRepositoryConnectionDelegate.connect(KettleDatabaseRepositoryConnectionDelegate.java:141)
at org.pentaho.di.repository.kdr.KettleDatabaseRepository.connect(KettleDatabaseRepository.java:173)
at org.pentaho.di.repository.kdr.KettleDatabaseRepository.connect(KettleDatabaseRepository.java:163)
at org.pentaho.di.ui.repository.RepositoriesHelper.loginToRepository(RepositoriesHelper.java:211)
at org.pentaho.di.ui.repository.controllers.RepositoriesController.login(RepositoriesController.java:137)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.pentaho.ui.xul.impl.AbstractXulDomContainer.invoke(AbstractXulDomContainer.java:323)
at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:131)
at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:119)
at org.pentaho.ui.xul.swt.tags.SwtTextbox.access$300(SwtTextbox.java:21)
at org.pentaho.ui.xul.swt.tags.SwtTextbox$2.handleEvent(SwtTextbox.java:70)
at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source)
at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:820)
at org.eclipse.jface.window.Window.open(Window.java:796)
at org.pentaho.ui.xul.swt.tags.SwtDialog.show(SwtDialog.java:313)
at org.pentaho.ui.xul.swt.tags.SwtDialog.show(SwtDialog.java:265)
at org.pentaho.di.ui.repository.RepositoriesDialog.show(RepositoriesDialog.java:79)
at org.pentaho.di.ui.spoon.Spoon.selectRep(Spoon.java:6209)
at org.pentaho.di.ui.spoon.Spoon.start(Spoon.java:6357)
at org.pentaho.di.ui.spoon.Spoon.main(Spoon.java:539)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.pentaho.commons.launcher.Launcher.main(Launcher.java:110)
Caused by: org.pentaho.di.core.exception.KettleException:

No repository exists on the specified connection.

To create a repository, select the Edit' button followed by the 'Create or upgrade' button.

at org.pentaho.di.repository.kdr.delegates.KettleDatabaseRepositoryConnectionDelegate.verifyVersion(KettleDatabaseRepositoryConnectionDelegate.java:191)
at org.pentaho.di.repository.kdr.delegates.KettleDatabaseRepositoryConnectionDelegate.connect(KettleDatabaseRepositoryConnectionDelegate.java:120)
... 30 more
DEBUG 29-03 10:54:26,451 - updateMenu called. schedulingEnabled is false