[stable6] Update SabreDAV to 1.7.11

[PVince81]

⛔ NOMERGE ⛔

DON'T merge before 6.0.2 is released.

Backport of c77c4dd to stable6

@DeepDiver1975 as discussed.

Are the autoloader changes necessary for that update ?

[georgehrke]

@DeepDiver1975 Does cleaning up the 3rdparty "mess" also include removing VObject from core's 3rdparty folder, as it is not needed by core?

[georgehrke]

(a bit off topic, but related to keeping SabreDav up to date)

[DeepDiver1975]

@PVince81 what shall we do here? THX

[DeepDiver1975]

Does cleaning up the 3rdparty "mess" also include removing VObject from core's 3rdparty folder, as it is not needed by core?

we will keep sabre in 3rdparty including it's dependencies like vobject

[PVince81]

I don't really remember why we wanted that backport, possibly an important bugfix (CC @LukasReschke)

[LukasReschke]

c77c4dd#diff-0d9497d33b1fc973114332b929a080fcR535

It's a bugfix. It may fail otherwhise when using PHP-FPM due to a PHP bug.

[LukasReschke]

"fail" = ownCloud may not run properly at all.

[PVince81]

@DeepDiver1975 I guess this is obsolete, close ?

[LukasReschke]

7 has this. 6 can live without fine to close for me.