$ git clone -n https://src.fedoraproject.org/rpms/libcamera.git /var/lib/mock/f38-build-side-42-init-devel-755751-27676/root/chroot_tmpdir/scmroot/libcamera
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-755751-27676/root/chroot_tmpdir/scmroot/libcamera'...
$ git fetch origin bc4d5bffb77d01372980d571af8208748973b019:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libcamera
 * [new ref]         bc4d5bffb77d01372980d571af8208748973b019 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bc4d5bf Update to version 0.0.4