$ git commit
error: invalid object 100644 13da9eeff5a9150cf2135aaed4d2e337f97b8114 for 'spec/routing/splits_routing_spec.rb'
error: Error building trees

$ git fsck | grep 13da
missing blob 13da9eeff5a9150cf2135aaed4d2e337f97b8114

$ git prune
error: Could not read 1394dce6fd1ad15a70b2f2623509082007dc5b6c
fatal: bad tree object 1394dce6fd1ad15a70b2f2623509082007dc5b6c

$ git fsck | grep 13da
missing blob 13da9eeff5a9150cf2135aaed4d2e337f97b8114

/repo/.git/objects/13/da9eeff5a9150cf2135aaed4d2e337f97b8114