Chanter can summon infinity number of phantoms and if more than one dies they start remove portraits from party memebers

[Description of the issue]
Chanter can summon infinity number of phantom minions, may also be issue with other summoning spells 

[DETAILED list of steps to reproduce the issue AND what to look for]
1) Create a chanter character with phantom summoning spell

2) Go in battle and wait until you have enough resources to summon phantom

3) Summon phantom and wait until you have resources to summon new phantom

4) Summon new phantom

5) Repeat several times

6) And see how your phantom army grows 

[Expected behaviour]
Excepted that you are able to summon only one phantom at a time

[Description of the issue]
When you have multiple phantoms summoned at same time and they start to die, character portraits start to disappear, same way as when companion dies.

[DETAILED list of steps to reproduce the issue AND what to look for]
1) Follow steps from previous issue description to summon phantom army

2) Lead your phantoms to their doom (if permadeath isn't activated phantoms become maimed first and then you need to resolve combat or wait that enemies lose their interest and phantoms pop up again)

3) See how portraits start to disappear 

[Expected behaviour]
Dying summons should not cause disappearance of party's portraits

[Description of the issue]
When summoned phantoms stamina goes zero, when permanent death isn't activated, they become maimed instead of dying, probably effects also other summoning spells 

[DETAILED list of steps to reproduce the issue AND what to look for]

1) Start game without permanent death 

2) Create chanter character with phantom summoning spell 

3) Get in fight and wait that you have enough resources to summon phantom and summon one 

4) Let phantom's stamina go zero

5) End combat and see how phantom rises back up

[Expected behaviour]

Excepted that phantom vanishes when its stamina goes zero