Fix double closing on memory file

[simophin]

It should be able to fix this issue:

*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
pid: 0, tid: 25649 >>> network.loki.messenger <<<

backtrace:
  #00  pc 0x000000000009988c  /apex/com.android.runtime/lib64/bionic/libc.so (fdsan_error(char const*, ...)+564)
  #01  pc 0x0000000000099590  /apex/com.android.runtime/lib64/bionic/libc.so (android_fdsan_close_with_tag+920)
  #02  pc 0x00000000000264f8  /apex/com.android.art/lib64/libjavacore.so (Linux_close(_JNIEnv*, _jobject*, _jobject*)+104)
  #03  pc 0x000000000033e310  /data/misc/apexdata/com.android.art/dalvik-cache/arm64/boot.oat (art_jni_trampoline+128)
  #04  pc 0x00000000005f1468  /data/misc/apexdata/com.android.art/dalvik-cache/arm64/boot.oat (libcore.io.BlockGuardOs.close+824)
  #05  pc 0x00000000005ebaa0  /data/misc/apexdata/com.android.art/dalvik-cache/arm64/boot.oat (libcore.io.ForwardingOs.close+64)
  #06  pc 0x00000000005b47bc  /data/misc/apexdata/com.android.art/dalvik-cache/arm64/boot.oat (android.system.Os.close+76)
  #07  pc 0x00000000005ba818  /apex/com.android.art/lib64/libart.so (nterp_helper+152)
  #08  pc 0x0000000000256c74  /system/framework/framework.jar (android.os.SharedMemory$Closer.run+20)
  #09  pc 0x0000000000510778  /data/misc/apexdata/com.android.art/dalvik-cache/arm64/boot.oat (sun.misc.Cleaner.clean+88)
  #10  pc 0x000000000037a188  /data/misc/apexdata/com.android.art/dalvik-cache/arm64/boot.oat (java.lang.ref.ReferenceQueue.enqueuePending+392)
  #11  pc 0x00000000005eb380  /data/misc/apexdata/com.android.art/dalvik-cache/arm64/boot.oat (java.lang.Daemons$ReferenceQueueDaemon.runInternal+576)
  #12  pc 0x00000000005c034c  /data/misc/apexdata/com.android.art/dalvik-cache/arm64/boot.oat (java.lang.Daemons$Daemon.run+156)
  #13  pc 0x000000000041c970  /data/misc/apexdata/com.android.art/dalvik-cache/arm64/boot.oat (java.lang.Thread.run+64)
  #14  pc 0x000000000033eba4  /apex/com.android.art/lib64/libart.so (art_quick_invoke_stub+612)
  #15  pc 0x000000000023a9ac  /apex/com.android.art/lib64/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+144)
  #16  pc 0x000000000053b96c  /apex/com.android.art/lib64/libart.so (art::Thread::CreateCallback(void*)+1600)
  #17  pc 0x000000000053b31c  /apex/com.android.art/lib64/libart.so (art::Thread::CreateCallbackWithUffdGc(void*)+8)
  #18  pc 0x00000000000fd0f4  /apex/com.android.runtime/lib64/bionic/libc.so (__pthread_start(void*)+208)
  #19  pc 0x0000000000096a04  /apex/com.android.runtime/lib64/bionic/libc.so (__start_thread+68)

[simophin]

To reproduce the issue, do the following:

1. Make sure your Android version is 13+
2. Open the app, find a conversation to go to
3. Send a PDF file into the chat
4. Open the "Dot menu" on chat screen, and go to "All media"
5. Upon opening the gallery viewer, Go to "Documents" part
6. Tap on the PDF file to open. The PDF should have open in other apps.
7. Come back to the app
8. Play around for a bit. Do some memory heavy stuff, like sending big attachment, viewing images, etc.

It will crash eventually. It's actually quite easy for me to trigger it.

Screen_recording_20240729_115708.webm