Searching for regular expression ^([^:]+):([^:]+)$ and substituting with ffffffffffffff
in the sample below appears to sustitute every second line.
It may be the anchored match?
The same RE in perl substitutes all lines.
|Submitted||jnp1234 - 2010-01-27 - 11:57:47z||Assigned||k_satoda|
|2010-01-27 - 17:13:12z
|This is almost a duplicate of #2915720, which was reported for "^\s.*$"
and fixed, and will soon released as 4.3.1.
The problem happened with regexp which starts with "^" followed by any
pattern which matches with a newline character.
However, your test case showed me another surprising behavior. jEdit
doesn't find the last line, which seems likely matches with the pattern.
I'll take another look for this.