Workspace load duplicates package file source code

Loading workspace that contains package files with file splitting tags will silently generate duplicate source code. To trigger the condition Toad settings need to have file splitting tags
enabled, open one connection and one package file test1.sql with contents:

/*<TOAD_FILE_CHUNK>*/
create or replace package TEST1 is end TEST1;
/

/*<TOAD_FILE_CHUNK>*/
create or replace package body TEST1 is end TEST1;
/

(it will open as two tabs). Then save this as new workspace. Close everything and open the workspace and now it opens a connection with the test1.sql in two tabs as expected but both have duplicated code. If now editing and saving the file the contens will be:

/*<TOAD_FILE_CHUNK>*/
create or replace package TEST1 is end TEST1;
/

/*<TOAD_FILE_CHUNK>*/
create or replace package body TEST1 is end TEST1;
/

/*<TOAD_FILE_CHUNK>*/
create or replace package TEST1 is end TEST1;
/

/*<TOAD_FILE_CHUNK>*/
create or replace package body TEST1 is end TEST1;
/

My settings:

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