"Load style" does not load text styles

Context: today commit (706d844e6, 2013-11-12), self complied under Linux Mint 14, Qt Creator 2.7.2 and Qt lib 5.1.0.

Steps:
1) In a score whatsoever, customize some text styles and save as a custom style file (menu "Save | Save style")
2) In another score, load the saved style ("Style | Load style")

Result: Only the "Title" style is loaded from the style file, all other text styles are unaffected, not is any user-added text style read back.

Note: The saved style file does contain the customizations; then, it is not a matter of writing, but a matter of reading.