OS X: Segfault adding ligature

I’m running fontforge 20131122, libfontforge 20131122-ML on OS X Mavericks. I’m trying to add a ligature to an Indic font for the Grantha script. The target of any ligature I add (through Glyph Info) ends up being a .notdef in the table, If I then go to Font Info, Lookups, go into the sub-table, Edit Data and try to fix the Ligature Glyph Name, FontForge crashes when I hit ‘OK’, with a Segmentation Fault, with the following output:

MakeTemporaryFile() fd:28 template:/var/folders/_j/jr2f9sf110l_ylyy7mchm95h0000gp/T//fontforge-stemp-H83T9W
Failed to read a file. Bytes read:0 file size:0
/Applications/FontForge.app/Contents/MacOS/FontForge: line 64:   699 Segmentation fault: 11  $WRAPPER $bundle_bin/fontforge -new "$@"

Here are repro steps:

* Download file from the link below (you may need a modern browser + JS)
http://sdrv.ms/1fwqunc
* Go to Element → Font Info
* Go to Lookups
* Open the <1, 0> Required Ligatures table
* Select the only sub-table and click Edit Data
* Notice the 2 ligatures are both .notdef
* Try to fix up the Ligature glyph-names by editing the first notdef, typing in ‘uniE00C’
* Click OK
* CRASH!

Thanks for any help!
Ambarish

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