btrfs_graph is not cleaned up after container deletion

[ramelito]

btrfs_graph is not cleaned up after container destroy and this leads to disk free space exhaustion

[cf-gitbot]

We have created an issue in Pivotal Tracker to manage this. You can view the current status of your issue at: https://www.pivotaltracker.com/story/show/103169682.

[goonzoid]

Hi @ramelito. We've actually been working on this recently, and the fix will be shipped in the next release (v0.306.0), which should be ready this week.

Thanks!