bzr causes ASSERT off_t Compress::cleverCopy(int, off_t, int, LayerMap&) (r == writeOffset)

[xlotlu]

Using fusecompress 2.6-2 from debian.
On a clean bzr branch / checkout, doing bzr status two times in a row causes:

virtual Compress::~Compress(), picard/.bzr/checkout/conflicts
FuseCompress::open 0x7fd6ac002540 name: picard/.bzr/checkout/dirstate
Compress::open m_refs: 2
FuseCompress::write 0x7fd6ac002540 name: picard/.bzr/checkout/dirstate, size: 0x1000, offset: 0x0
Memory::write(picard/.bzr/checkout/dirstate) | m_FileSize: 0x127b4, size: 0x1000, offset: 0x0
FuseCompress::write 0x7fd6ac002540 name: picard/.bzr/checkout/dirstate, size: 0x1000, offset: 0x1000
Memory::write(picard/.bzr/checkout/dirstate) | m_FileSize: 0x127b4, size: 0x1000, offset: 0x1000
[repeated in 0x1000 increments, until]
FuseCompress::write 0x7fd6ac002540 name: picard/.bzr/checkout/dirstate, size: 0x7b3, offset: 0x12000
Memory::write(picard/.bzr/checkout/dirstate) | m_FileSize: 0x127b4, size: 0x7b3, offset: 0x12000
FuseCompress::truncate file picard/.bzr/checkout/dirstate, to size: 127b3
truncate name: picard/.bzr/checkout/dirstate, m_IsCompressed: 1, size: 127b3
void Compress::DefragmentFast()
offset: 0x0, coffset: 0x19, size: 0x127b3
length: 0x5744
ASSERT off_t Compress::cleverCopy(int, off_t, int, LayerMap&) (r == writeOffset)
Aborted

[da115115]

Note that the preferred platform for posting bugs is Berlios.de: https://developer.berlios.de/projects/fusecompress/
Currently open tickets: https://developer.berlios.de/bugs/?group_id=5384