packaging: add Fedora 29 target Differential Revision: https://phab.mercurial-scm.org/D5254

store: pass in decoded filename to narrow matcher

test-narrow-clone-stream: include no usefncache case which is broken Since 9aeb9e2d28a7, encoded filenames are filtered by the narrow matcher, which is clearly wrong.

test-narrow-clone-stream: include uppercase letter in filename This makes encoded filenames differ from the original names.

phase: use the `phases.cmdphasenames` constant to walk available command flags This reverts 1ea6772fb415.

phases: add a list of names usable by the phase command This is useful in TortoiseHg for example, which has until recently just added all names in the `phasenames` list to the context menu that changes the phase. The ones not supported by the command would just error out.

transaction: display data about why the transaction failed to rollback We saw more of these a while back. Having more data available would be nice.

merge with stable

remotefilelog: avoid accessing repo instance after dispatch Upstream commit c5e6c1ba1c79 (hg: don't reuse repo instance after unshare(), 2018-09-12) poisoned the repo instance after unshare(). That made `hg unshare` fail with remotefilelog because we tried to close the fileserverclient after dispatch by accessing it via the repo. This patch fixes that by storing the reference to the fileserverclient at the beginning of dispatch. An analogous patch was sent for remotefilelog version in FB's hg-experimental as D5246. Differential Revision: https://phab.mercurial-scm.org/D5253

share: avoid a now-unnecessary reload of the repo hg.share() now returns an already-reloaded repo, so let's just use that. (This would have failed test-subrepo-recursion.t without the previous patch.) Differential Revision: https://phab.mercurial-scm.org/D5252