Created attachment 368955 [details] [review]
[PATCH] ESource: avoid queueing "changed" emission during initialization

Since [deade53 "Prevent early free of an ESource when it has pending
operations"] the idle changed emmission takes a reference to the object
before it busily spins until the end of object initialization.

However, when the initable subclass initialization fails, it spins forever.
This happened with an empty source file (presumably left in place after
a crash):

   $ >~/.config/evolution/sources/1430226322.3948.1@belphegor.source
   ** Failed to load key file at 'file:///...': Data source is missing a [Data Source] group
   (100% CPU consumption at this point)

At the end of source_initable_init() the delayed changed signals would
be destroyed anyway -- let's not enqueue them in the first place.
---
 src/libedataserver/e-source.c | 19 +++----------------
 1 file changed, 3 insertions(+), 16 deletions(-)