if no srcDelegation avoid crash

[henri-ly]

📝 Description

Crash when going back to a already redelegate delegation.

❓ Context

• Impacted projects: live-mobile
• Linked resource(s): ``

✅ Checklist

• Test coverage
• Atomic delivery
• No breaking changes

📸 Demo

Screen.Recording.2022-11-17.at.10.26.32.mov

🚀 Expectations to reach

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[vercel]

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Name	Status	Preview	Updated
live-common-tools	✅ Ready (Inspect)	Visit Preview	Nov 17, 2022 at 10:08AM (UTC)

3 Ignored Deployments

Name	Status	Preview	Updated
ledger-live-github-bot	⬜️ Ignored (Inspect)		Nov 17, 2022 at 10:08AM (UTC)
native-ui-storybook	⬜️ Ignored (Inspect)		Nov 17, 2022 at 10:08AM (UTC)
react-ui-storybook	⬜️ Ignored (Inspect)		Nov 17, 2022 at 10:08AM (UTC)

[changeset-bot]

🦋 Changeset detected

Latest commit: 32633f7

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
live-mobile	Minor

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[codecov]

Codecov Report

Base: 42.71% // Head: 42.95% // Increases project coverage by +0.24% 🎉

Coverage data is based on head (32633f7) compared to base (ea34c13).
Patch has no changes to coverable lines.

Additional details and impacted files

@@             Coverage Diff             @@
##           release    #1842      +/-   ##
===========================================
+ Coverage    42.71%   42.95%   +0.24%     
===========================================
  Files          622      625       +3     
  Lines        25838    26114     +276     
  Branches      7121     7202      +81     
===========================================
+ Hits         11036    11218     +182     
+ Misses       14748    13747    -1001     
- Partials        54     1149    +1095     

Flag	Coverage Δ
test	42.95% <ø> (+0.24%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
libs/ledger-live-common/src/apps/support.ts	54.54% <ø> (ø)
libs/ledger-live-common/src/env.ts	72.22% <0.00%> (ø)
libs/ledger-live-common/src/convert.ts	12.50% <0.00%> (ø)
libs/ledger-live-common/src/network.ts	70.93% <0.00%> (ø)
libs/ledger-live-common/src/promise.ts	57.44% <0.00%> (ø)
libs/ledger-live-common/src/api/Tron.ts	16.53% <0.00%> (ø)
libs/ledger-live-common/src/hw/index.ts	20.00% <0.00%> (ø)
libs/ledger-live-common/src/nft/hook.ts	33.33% <0.00%> (ø)
libs/ledger-live-common/src/api/Ripple.ts	29.16% <0.00%> (ø)
libs/ledger-live-common/src/api/socket.ts	8.19% <0.00%> (ø)
... and 244 more

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[github-actions]

@henrily-ledger

Screenshots: ✅

There are no changes in the screenshots for this PR. If this is expected, you are good to go.

[ghost]

Also the white screen at the end looks weird to me 😄 most likely acceptable to remove the blocker, but maybe removing the back button as you suggested made more sense?... unless the issue also happens on other screens than the final confirmation one.
QA to decide if acceptable as it is.