* Some things like "@_" and the scratchpad list do not set this, to
* indicate that they are cheating (for efficiency) by not refcounting
* the AV's contents.
*
* Some things like "@_" and the scratchpad list do not set this, to
* indicate that they are cheating (for efficiency) by not refcounting
* the AV's contents.
*
* is not set). It indicates that the fake AV is capable of becoming
* real if the array needs to be modified in some way. Functions that
* modify fake AVs check both flags to call av_reify() as appropriate.
* is not set). It indicates that the fake AV is capable of becoming
* real if the array needs to be modified in some way. Functions that
* modify fake AVs check both flags to call av_reify() as appropriate.