Accessing the report crashes when the samples values are changed

[diegoliberman]

Steps to reproduce the error

1. Create a box, transfer it to another institution, confirm the transfer, upload the results, create a report.
2. You'll see that you can access the report normally.
3. Open any sample from the box. Edit any value, for example the Technician name.
4. Go back to the report and try to open it.
5. It will crash.

[ysbaddaden]

I can't reproduce. It may have been fixed by #1974 and/or #1975

[leandroradusky]

This error happens because the measured signal is converted to a string when the sample is edited.

In the last merge with the bugfixes made by @ysbaddaden this:

      - if @sample_form.measured_signal
        = f.form_field :measured_signal do
          = f.text_field :measured_signal, readonly: true

changed to

      - if @sample_form.measured_signal
        = f.form_field :measured_signal do
          .value= @sample_form.measured_signal

This will correct the error automatically?

[ysbaddaden]

Yes, it won't be sent anymore, so it won't be saved anymore.

[ysbaddaden]

QA: we didn't fix the existing invalid samples in staging. You must reproduce the edit steps with new samples.

[sardar-usman]

@leandroradusky It is working fine.