Issue #1512 - Fixed the problem that if score is changed to 0, the ch…

[gcheung-SF]

…anged score is missing from Case-control, Experimental Data and Individual evidences.

[gcheung-SF]

Steps to test #1512:

1. Log in as yourself.
2. Create a new Gene-Disease Record.
3. Add an article by PMIDs.
4. Create a case-control evidence and score with a number.
5. Change affiliation and associate yourself with an affiliation.
6. Select the same Gene-Disease record that's created in Log in system #2.
7. Click View/score link in case-control evidence that's created in Gene Disease Input #4.
8. Select 0 for the score.
9. Change affiliation and back as yourself.
10. View/Score the same case-control evidence. See the 0 scored entry is displayed under "Case-Control - Other Curator Scores" section.

Repeat the same testing with Individual evidence.

1. Log in as yourself.
2. Create a new Gene-Disease Record.
3. Add an article by PMIDs.
4. Create an Individual evidence, select "Yes" for "Is this Individual a proband" field, select an variant, select "score" in "Select Status" field, and use default score or score with a number.
5. Change affiliation and associate yourself with an affiliation.
6. Select the same Gene-Disease record that's created in Log in system #2.
7. Click the View/Score link in individual evidence created in Gene Disease Input #4.
8. Scroll down to "Individual - Score Proband" section, select 0 for "Select a score different from default score" field, enter text in "Explanation" field and click "Save" button.
9. Change affiliation and back as yourself.
10. View/Score the same individual evidence. See the 0 scored entry is displayed under "Individual - Other Curator Scores" section.

Repeat the same testing with Experimental Data evidences.

1. Log in as yourself.
2. Create a new Gene-Disease Record.
3. Add an article by PMIDs.
4. Create an Experimental evidence, select any value for required fields, select "score" for "Select Status" field and score a number.
5. Change affiliation and associate yourself with an affiliation.
6. Select the same Gene-Disease record that's created in Log in system #2.
7. Click the View/Score link in experimental evidence created in Gene Disease Input #4.
8. Scroll down to "Experimental Data Score" section, select 0 for "Select a score different from default score" field, enter text in "Explanation" field and click "Save" button.
9. Change affiliation and back as yourself.
10. View/Score the same experimental evidence. See the 0 scored entry is displayed under "Case-Control - Other Curator Scores" section.

[h-tong]

Looks good. There are tests that fail when I run them locally, but I think it is because the branch hasn't been updated with dev in a while.