view .arcconfig @ 37332:b48b7b130d08

rebase: use single transaction when running in memory

rebase.singletransaction make rebase noticeably faster (~20% in a test
I just ran). It is not enabled by default because it risks losing
information if it aborts (see `hg help rebase`). When running rebase
with the experimental in-memory option on, rebase is first attempted
in memory, and if any conflicts occur, it restarts, this time writing
to disk. Thus, it should be safe to turn on single-transaction mode
for the in-memory phase.

Differential Revision: https://phab.mercurial-scm.org/D3076

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