$ git clone -n https://src.fedoraproject.org/rpms/perl-Sys-Detect-Virtualization.git /var/lib/mock/f41-build-1060528-19456/root/chroot_tmpdir/scmroot/perl-Sys-Detect-Virtualization
Cloning into '/var/lib/mock/f41-build-1060528-19456/root/chroot_tmpdir/scmroot/perl-Sys-Detect-Virtualization'...
$ git fetch origin ef97ebc2bb2cee37f94905dccd9d99db0de4bf10:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Sys-Detect-Virtualization
 * [new ref]         ef97ebc2bb2cee37f94905dccd9d99db0de4bf10 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ef97ebc Eliminate use of obsolete %patchN syntax (#2283636)