Editing a series that has works in different pseuds affects the pseuds on the works

If you have works in a series under different pseuds, and you edit the series (such as the summary), it messes up the pseuds on the works.

Steps to reproduce

• Create a work that’s in a new series

• Create a second work in that same series with a different pseud

• Edit the whole series (like, edit the summary). Note that both pseuds are highlighted.

• Select Update. Note that both works now have both pseuds on them.

• Edit the whole series again. Select 1 pseud.

• Select Update. Note that both works now have that 1 pseud on them.

What happens

• If you edit the series summary, and don't touch the pseuds (which default to having the ones used in the works highlighted), it changes the works to have all pseuds that are highlighted.

• If you edit the series summary, and select 1 pseud, it changes the works to have that 1 pseud.

• Additional testing ( https://test.archiveofourown.org/series/64149 ) shows that it only affects pseuds within an account. It does not spill to separate accounts. (609145)

Reported by a user in zoho 547388