>>>>> "dal-blazej" == dal-blazej <dal-bla...@onenetbeyond.org> writes:
[...] dal-blazej> To reproduce the issue : dal-blazej> 1. In the *server* buffer, use dal-blazej> `gnus-group-read-ephemeral-search-group' with the query dal-blazej> "from:j...@gnu.org" dal-blazej> 2. The first search succeed ; *in the ephemeral search dal-blazej> buffer*, now use `gnus-summary-refer-thread' on an dal-blazej> article. I get: (wrong-type-argument listp "") I don't know if this is related but I just fixed a rather rare bug in thread referral on master (it happens when the subject of the message on which you initiate the thread referral is nearly empty). You might give this a try to see if it fixes your problem. -- Andrew Cohen