$ git clone -n https://src.fedoraproject.org/rpms/perl-IPC-SharedCache.git /var/lib/mock/f41-build-780058-13558/root/chroot_tmpdir/scmroot/perl-IPC-SharedCache
Cloning into '/var/lib/mock/f41-build-780058-13558/root/chroot_tmpdir/scmroot/perl-IPC-SharedCache'...
$ git fetch origin 1c4c28053d65f1b5dff8dd6f2b22fa0b97f95e3a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-IPC-SharedCache
 * [new ref]         1c4c28053d65f1b5dff8dd6f2b22fa0b97f95e3a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1c4c280 Eliminate use of obsolete %patchN syntax (#2283636)