$ git clone -n https://src.fedoraproject.org/rpms/python-posix-ipc.git /var/lib/mock/f39-build-1425886-31585/root/chroot_tmpdir/scmroot/python-posix-ipc
Cloning into '/var/lib/mock/f39-build-1425886-31585/root/chroot_tmpdir/scmroot/python-posix-ipc'...
$ git fetch origin ac5fc816164e811526b6ca5589f0f2512ed91983:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-posix-ipc
 * [new ref]         ac5fc816164e811526b6ca5589f0f2512ed91983 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ac5fc81 Initial import (fedora#2190405).