icasefs: use case preserved root for 'util.fspath()' invocation (issue3302) path to repo root may contains case sensitive part, even though repo is located in case insensitive filesystem: e.g. repo in FAT32 device mounted on Unix. so, case normalized root causes failure of stat(2). this patch uses case preserved root for 'util.fspath()' invocation to avoid this problem. case preserved root for 'util.fspath()' may decrease efficiency of fspath cache, but 'util.fspath()' is currently called only from dirstate, so this fix has less impact.

merge: accept missing revisions in symlink flag merge (issue3316)

merge with stable

merge: handle linear update to symlink correctly (issue3316) This fixes a regression introduced by fcf66193b186. If no file-level merge is needed, we can update flags directly, otherwise we have a conflict to resolve in filemerge.

filemerge: restore default prompt for binary/symlink lost in 83925d3a4559 This could result in a traceback.

merge with stable

strip: enhance repair.strip to receive a list of nodes (issue3299) Originally, mq.strip called repair.strip a single rev at a time. repair.strip stores in a backup bundle any revision greater than the revision being stripped, strips, then restores the backup with repo.addchangegroup. So, when stripping revisions on more than one topological branch, some could end up being restored from the backup bundle, only to be later removed by a subsequent repair.strip call. But repo.addchangegroup calls hooks for all those restore operations. And 9df9444e96ec changed it to delay all hook calls until the repository lock were released - by mq.strip, after stripping all revisions. Thus, the hooks could be called over revisions already removed from the repository at that point. By generating the revision lists at once inside repo.strip, we avoid calling addchangegroup for temporary restores. Incidentally, this also avoids creating many backup files for a single strip command.