Issue #379: error in Tape, Create/Edit - '(' in Formula field then click f(x) (dismine/valentina)

New issue 379: error in Tape, Create/Edit - ‘(’ in Formula field then click f(x) https://bitbucket.org/valentinateam/valentina/issues/379/error-in-tape-create-edit-in-formula-field

Susan Spencer:

Error occurs with Tape.exe, ‘Create/Edit’, Individual measurement file.

When user enters left parenthesis ‘(’ in the Formula field and then clicks on the f(x) button, then the ‘Create/Edit’ dialog disappears and latest changes are lost in the measurement file.