rebase: no need to store backup in case of dryrun

Authored by khanchi97.

Description

rebase: no need to store backup in case of dryrun

While aborting an unfinished rebase in case of dryrun
there is no need to store backup for those rebased csets.

Differential Revision: https://phab.mercurial-scm.org/D3827

Details

Committed
khanchi97Jun 28 2018, 3:17 PM
Differential Revision
D3827: rebase: no need to store backup in case of dryrun
Parents
rHG9c3b48fb7ac5: rebase: split _origrebase() for conveniece in dryrun
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