When run from a different directory, TLAPM cannot handle leading text on modules imported using EXTENDS

[ahelwer]

Consider these two files:

---- MODULE Test ----
EXTENDS Other
====

Here is some text
---- MODULE Other ----
====

When TLAPM parses these in the current directory all is well:

tlapm Test.tla
(* created new ".tlacache/Test.tlaps/Test.thy" *)
(* fingerprints written in ".tlacache/Test.tlaps/fingerprints" *)
File "./Test.tla", line 1, character 1 to line 3, character 4:
[INFO]: All 0 obligation proved.

However, when these are parsed from a different directory, TLAPM errors on the leading text in Other.tla:

tlapm examples/Test.tla
File "Other.tla", line 1, character 5
Unexpected identifier Here
File "./examples/Test.tla", line 2, characters 9-13:
Error: Could not parse "Other.tla" successfully.
 tlapm ending abnormally with Failure("Module.Parser.parse_file")
Raised at Stdlib.failwith in file "stdlib.ml", line 29, characters 17-33
Called from Tlapm_lib__M_save.complete_load.(fun).spin.(fun) in file "src/module/m_save.ml", line 262, characters 44-66
Called from Stdlib__Set.Make.fold in file "set.ml", line 384, characters 34-55
Called from Tlapm_lib__M_save.complete_load.(fun).spin in file "src/module/m_save.ml", lines 231-289, characters 26-31
Called from Tlapm_lib__M_save.complete_load.(fun) in file "src/module/m_save.ml", line 291, characters 26-34
Called from Tlapm_lib__M_save.clocking in file "src/module/m_save.ml", line 24, characters 18-22
Called from Tlapm_lib.main in file "src/tlapm_lib.ml", line 571, characters 14-65
Called from Tlapm_lib.init in file "src/tlapm_lib.ml", line 591, characters 8-33