problem with et-al feature of refer version 1.19.2

[Y T]

                           Groff Bug Report


GROFF VERSION:
1.19.2 as well as the CVS version from Feb 3, 2008

MACHINE:
x86 PC

OS:
Scientific Linux 4.2 (same as Redhat RHEL 4.2)

COMPILER:
gcc 3.4.6

INPUT FILES:

Two files are attached:
refdb -- a refer database with two entries
test_input -- the input to refer

COMMAND LINE:

refer -p refdb test_input

DESCRIPTION OF INCORRECT BEHAVIOUR:

With version 1.19.2 as well as the CVS version from Feb 3, 2008,
the et-al feature does not work correctly.
With version 1.18.1.3, everything works fine.

With version 1.18.1.3, the text output is:
------------------------------------------------------------
.lf 1 test_input
.lf 10 test_input
Refer to Revisiting the Sequential Programming Model (Bridges et al., 2007)
.lf 14 test_input

Refer to Scalable Session Locking (Burns et al., 2001)
.lf 19 test_input
------------------------------------------------------------
Note that both labels were properly abbreviated with "et al".

With version 1.19.2, the text output is:
------------------------------------------------------------
.lf 1 test_input
.lf 10 test_input
Refer to Revisiting the Sequential Programming Model (Bridges, Vachharajani, 
Zhang, Jablin, and August, 2007)
.lf 14 test_input

Refer to Scalable Session Locking (Burns, Rees, Stockmeyer, and Long, 2001)
.lf 19 test_input
------------------------------------------------------------
Note the neither labels was properly abbreviated with "et al".
I get the same incorrect output with the CVS version from Feb 3, 2008.


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refdb
Description: Binary data

test_input
Description: Binary data