r.le.patch crashes with -c flag

[wilsonadam]

I am trying to run r.le.patch to create a map of separate 'patches' using the -c flag to drop the edges and only keep core areas of a certain size.

To recreate this:

g.region n=1 s=0 e=1 w=0 res=.01 ## Make some region
r.random.surface output=surface  ## create a raster to use as input
r.random input=surface n=10 raster_output=points ## create some random points
r.grow input=points radius=10 output=patch ## grow them to make 'patches'
r.le.patch -n map=patch sam=w co1=2 co2=c1 ## run r.le.patch with -n flag to identify the patches by number - it works fine
r.le.patch -c map=patch sam=w co1=2 co2=c1 ## run r.le.patch with -c flag to identify only 'core areas' - it crashes!

It segfaults with the error shown below. I am running the GRASS6.4.0RC5 checked out and compiled this morning on Fedora 11 2.6.30.9-90.fc11.x86_64

Any ideas? Am I doing something wrong or is this a bug? I've tried several settings for the co1 and c02 and it crashes with every combination I have tried.

Thanks for any help.

###########################################################

GRASS 6.4.0RC5 (CFR):/media/Data > r.le.patch -c map=patch sam=w co1=2 co2=c1  

PARAMETER CHOICES:
    MAP:      patch
    SAMPLE:      whole map        TRACING:  8 neighbor
    OUTPUT MAPS:
          interior
    CORE MEASURES:
          mean core size

R.LE.PATCH IS WORKING....;

*** glibc detected *** r.le.patch: double free or corruption (out): 0x0000000001c92be0 ***
======= Backtrace: =========
/lib64/libc.so.6[0x39e5e75a96]
r.le.patch(cell_clip+0x8fa)[0x417cea]
r.le.patch(cell_clip_drv+0x18c)[0x4180dc]
r.le.patch(patch_fore+0x98)[0x40c2d8]
r.le.patch(main+0x4fe)[0x40e61e]
/lib64/libc.so.6(__libc_start_main+0xfd)[0x39e5e1ea2d]
r.le.patch[0x403109]
======= Memory map: ========
00400000-0041d000 r-xp 00000000 fd:00 341102                             /usr/local/grass-6.4.0RC5/bin/r.le.patch
0061d000-0061e000 rw-p 0001d000 fd:00 341102                             /usr/local/grass-6.4.0RC5/bin/r.le.patch
01c4c000-01caf000 rw-p 00000000 00:00 0                                  [heap]
39e5a00000-39e5a1f000 r-xp 00000000 fd:00 45132                          /lib64/ld-2.10.1.so
39e5c1e000-39e5c1f000 r--p 0001e000 fd:00 45132                          /lib64/ld-2.10.1.so
39e5c1f000-39e5c20000 rw-p 0001f000 fd:00 45132                          /lib64/ld-2.10.1.so
39e5e00000-39e5f64000 r-xp 00000000 fd:00 45133                          /lib64/libc-2.10.1.so
39e5f64000-39e6164000 ---p 00164000 fd:00 45133                          /lib64/libc-2.10.1.so
39e6164000-39e6168000 r--p 00164000 fd:00 45133                          /lib64/libc-2.10.1.so
39e6168000-39e6169000 rw-p 00168000 fd:00 45133                          /lib64/libc-2.10.1.so
39e6169000-39e616e000 rw-p 00000000 00:00 0
39e6200000-39e6282000 r-xp 00000000 fd:00 54274                          /lib64/libm-2.10.1.so
39e6282000-39e6482000 ---p 00082000 fd:00 54274                          /lib64/libm-2.10.1.so
39e6482000-39e6483000 r--p 00082000 fd:00 54274                          /lib64/libm-2.10.1.so
39e6483000-39e6484000 rw-p 00083000 fd:00 54274                          /lib64/libm-2.10.1.so
39e6600000-39e6602000 r-xp 00000000 fd:00 56013                          /lib64/libdl-2.10.1.so
39e6602000-39e6802000 ---p 00002000 fd:00 56013                          /lib64/libdl-2.10.1.so
39e6802000-39e6803000 r--p 00002000 fd:00 56013                          /lib64/libdl-2.10.1.so
39e6803000-39e6804000 rw-p 00003000 fd:00 56013                          /lib64/libdl-2.10.1.so
39e6a00000-39e6a15000 r-xp 00000000 fd:00 56006                          /lib64/libz.so.1.2.3
39e6a15000-39e6c14000 ---p 00015000 fd:00 56006                          /lib64/libz.so.1.2.3
39e6c14000-39e6c15000 rw-p 00014000 fd:00 56006                          /lib64/libz.so.1.2.3
39f0400000-39f0419000 r-xp 00000000 fd:00 116332                         /lib64/libgcc_s-4.4.1-20090729.so.1
39f0419000-39f0619000 ---p 00019000 fd:00 116332                         /lib64/libgcc_s-4.4.1-20090729.so.1
39f0619000-39f061a000 rw-p 00019000 fd:00 116332                         /lib64/libgcc_s-4.4.1-20090729.so.1
7f308a2da000-7f308f3ad000 r--p 00000000 fd:00 56067                      /usr/lib/locale/locale-archive
7f308f3ad000-7f308f3b0000 rw-p 00000000 00:00 0
7f308f3d2000-7f308f3da000 r-xp 00000000 fd:00 358068                     /usr/local/grass-6.4.0RC5/lib/libgrass_datetime.6.4.0RC5.so
7f308f3da000-7f308f5d9000 ---p 00008000 fd:00 358068                     /usr/local/grass-6.4.0RC5/lib/libgrass_datetime.6.4.0RC5.so
7f308f5d9000-7f308f5da000 rw-p 00007000 fd:00 358068                     /usr/local/grass-6.4.0RC5/lib/libgrass_datetime.6.4.0RC5.so
7f308f5da000-7f308f5db000 rw-p 00000000 00:00 0
7f308f5db000-7f308f62c000 r-xp 00000000 fd:00 358108                     /usr/local/grass-6.4.0RC5/lib/libgrass_gis.6.4.0RC5.so
7f308f62c000-7f308f82c000 ---p 00051000 fd:00 358108                     /usr/local/grass-6.4.0RC5/lib/libgrass_gis.6.4.0RC5.so
7f308f82c000-7f308f82e000 rw-p 00051000 fd:00 358108                     /usr/local/grass-6.4.0RC5/lib/libgrass_gis.6.4.0RC5.so
7f308f82e000-7f308f838000 rw-p 00000000 00:00 0
7fffcf185000-7fffcf19a000 rw-p 00000000 00:00 0                          [stack]
7fffcf1ee000-7fffcf1ef000 r-xp 0000000Aborted