[patching] patch:list shows patch as installed even-though installation failed with exception

• JBoss fuse 6.2 GA with patch management from build 078
• windows server 2012 R2

  patch:add file://...build 73

  patch:add file://...build 78

  JBossFuse:karaf@root> patch:install jboss-fuse-full-6.2.1.redhat-073

  ...

  ...

  Caused by: java.io.IOException: Destination 'C:\jboss-fuse-6.2.0.redhat-133\etc'

  directory cannot be created

  at io.fabric8.patch.management.io.EOLFixingFileUtils.doCopyDirectory(EOL

  FixingFileUtils.java:105)

  at io.fabric8.patch.management.io.EOLFixingFileUtils.copyDirectory(EOLFi

  xingFileUtils.java:79)

  at io.fabric8.patch.management.impl.GitPatchManagementServiceImpl.copyMa

  nagedDirectories(GitPatchManagementServiceImpl.java:2453)

  at io.fabric8.patch.management.impl.GitPatchManagementServiceImpl.applyC

  hanges(GitPatchManagementServiceImpl.java:2576)

  at io.fabric8.patch.management.impl.GitPatchManagementServiceImpl.commit

  Installation(GitPatchManagementServiceImpl.java:961)

  ... 22 more

  Error executing command: Destination 'C:\jboss-fuse-6.2.0.redhat-133\etc' direct

  ory cannot be created

  JBossFuse:karaf@root> patch:list

  [name] [installed] [description]

  jboss-fuse-full-6.2.1.redhat-073 true

  jboss-fuse-full-6.2.1.redhat-078 false

  JBossFuse:karaf@root>

For some reason folder $FUSE_HOME/etc was marked as "read only".
I don't know how/why it was set as read only, but it's the reason of patch:install failure.

Point is - why is patch 73 marked as installed?