Hi, Thanks for the report. On Sun, 01 Aug 2021 at 02:21, Denis 'GNUtoo' Carikli wrote: > Diffing the two provenance files gives that: >> +++ >> bfxvk59q0m034iyq5zkk841zkisayyjl-tarball-pack/gnu/store/216jiimdyw7zyx8s9b3fz67aw69ydkvw-profile/manifest >> 1970-01-01 01:00:01.000000000 +0100 @@ -15,9 +15,10 @@ (repository >> (version 0) >> (url "https://git.savannah.gnu.org/git/guix.git") >> - (branch "master") >> + (branch #f) >> (commit >> "f9bd4621dd92a9415276706b476b9bd2973411fa") >> + (name guix) >> (introduction >> (channel-introduction >> (version 0) Well, I think it comes from ’channel-list’ in the ’time-machine’. Specifically, it reads in guix/scripts/pull.scm: --8<---------------cut here---------------start------------->8--- (channel (inherit guix) (url url) (commit commit) (branch #f))) --8<---------------cut here---------------end--------------->8--- other said, the name of the branch is “lost”. Hum, I do not know if this is done on purpose or not. Maybe this change --8<---------------cut here---------------start------------->8--- (cons (match ref (('commit . commit) (channel (inherit guix) (url url) (commit commit)) (('branch . branch) (channel (inherit guix) (url url) (commit #f) (branch branch))) (#f (channel (inherit guix) (url url)))) (remove guix-channel? channels)) --8<---------------cut here---------------end--------------->8--- is enough. But, I do not know what would happens for: guix pull --commit= where is not a commit from the branch master. All the best, simon